Polyvinyl Chloride Polymer Research Articles

Effect of vinyl chloride exposure on cardiometabolic toxicity.

Vinyl chloride (VC) is an organochlorine mainly used to manufacture its polymer polyvinyl chloride, which is extensively used in the manufacturing of consumer products. Recent studies suggest that chronic low dose VC exposure affects glucose homeostasis in high fat diet-fed mice. Our data suggest that even in the absence of high fat diet, exposure to VC (0.8ppm, 6h/day, 5day/week, for 12 weeks) induces glucose intolerance (1.0g/kg, i.p.) in male C57BL/6 mice. This was accompanied with the depletion of hepatic glutathione and a modest increase in lung interstitial macrophages. VC exposure did not affect the levels of circulating immune cells, endothelial progenitor cells, platelet-immune cell aggregates, and cytokines and chemokines. The acute challenge of VC-exposed mice with LPS did not affect lung immune cell composition or plasma IL-6. To examine the effect of VC exposure on vascular inflammation and atherosclerosis, LDL receptor-KO mice on C57BL/6 background maintained on western diet were exposed to VC for 12 weeks (0.8ppm, 6h/day, 5day/week). Unlike the WT C57BL/6 mice, VC exposure did not affect glucose tolerance in the LDL receptor-KO mice. Plasma cytokines, lesion area in the aortic valve, and markers of lesional inflammation in VC-exposed LDL receptor-KO mice were comparable with the air-exposed controls. Collectively, despite impaired glucose tolerance and modest pulmonary inflammation, chronic low dose VC exposure does not affect surrogate markers of cardiovascular injury, LPS-induced acute inflammation in C57BL/6 mice, and chronic inflammation and atherosclerosis in the LDL receptor-KO mice.

Investigation on dynamic mechanical analysis of bio-active coating materials coated on Teflon, PVC and Nylon polymers

Selection of Bio-active coating materials plays a vital role in order to improve the life span and mechanical properties of Bio-material implants. Bio-active coating is extensively coated on the Bio-polymers such as Nylon, Polytetrafluoroethyene (Teflon) and polyvinyl chloride (PVC) to form a thin film barrier where Hydroxyapatite (HAP) is used as Bio-coating material, which is very expensive and poor in viscoelastic behavior and damping co-efficient. The objective of this paper is to select the alternative Bio-coating material by using Aluminum Oxide, Egg and Sea Shell which are easily available in nature and economical. Selected Bio-active materials are used to protect the surface area of the Bio-implant. Plasma spray technology is used to coat the Teflon, Nylon and PVC with selected coating materials. Dynamic Mechanical Analysis (DMA) test conducted on both coated and uncoated samples to examine the viscoelastic behavior and damping co-efficient of samples where Teflon, Nylon and PVC coated with Al2O3, Egg Shell and Sea Shell showed better results when compared to Hydroxyapatite (HAP).

Process capability analysis for fabrication of high elongated PVC polymer using extrusion process

Poly-vinyl chloride (PVC) is one of the most demandable, usable commonly used thermoplastic polymer. Lots of research work related to PVC polymer has been highlighted in the past work due to its better mechanical strength such as elongation, flexibility and dimensional accuracy. In the past few years, it has been trying to add some properties which helps PVC polymer are easily used in the 3D printing technology. In the present study main highlight is to make accurate dimension of feedstock filament using twin-screw extruder (TSE). In this research work an effort has been made to fabricate PVC based feedstock filament which helps 3D printing are to be performed with easy flexibility. In this research work graphite fine powder has been reinforced in PVC thermoplastic extrusion using TSE process. Variation of graphite fine powder is varied from 5% to 15% with the gap of 5. For this research work, Taguchi L9 (3^3) orthogonal array has been used for fabrication of 3D printer feedstock filaments. Process capability analysis has been performed on fabricated feed stock filament for commercially fabrications. In this research work dimensional accuracy has been determined.

Compatibilization of polyvinyl chloride ‐ polymethyl methacrylate polymer blends with maleic anhydride‐styrene‐methyl methacrylate terpolymer

AbstractIn this study, nonmiscible polyvinyl chloride (PVC) and polymethyl methacrylate (PMMA) polymers were made miscible by using MA‐St‐MMA terpolymer as a compatibilizer. Maleic anhydride‐styrene‐methyl methacrylate (MA‐St‐MMA) terpolymer was synthesized in our laboratory and used. The synthesized terpolymer was determined by FT‐IR spectroscopy. Equal mass PVC/PMMA mixture samples were prepared in series and the compatibilizer terpolymer varying between 2% and 10% by mass was added to the samples and the effect of the added terpolymer on the miscibility was determined viscometrically, thermally, mechanically and, visually. With the addition of the compatibilizer, the two components in the mixture behave like a single polymer with a single glass transition temperature (Tg) and the mixture became compatible. As a result of viscometric experiments, it has been determined that with the added MA‐St‐MMA terpolymer, the Δb value derivated from the Krigbaum‐Wall equation which is the miscibility parameter of a mixture shifted into the positive (+) zone indicating that the two polymers became miscible. By visual analysis, it was observed that the added terpolymer reduced the opaque appearance and the phase separations of the mixture. From the tensile test, a significant improvement in impact toughness was observed. When all the data obtained were evaluated, it was determined that the synthesized MA‐St‐MMA terpolymer was a suitable compatibilizer for the mixture of PVC and PMMA.

Effect of addition of TiO2 nanoparticles on structural and dielectric properties of polystyrene/polyvinyl chloride polymer blend

The present study deals with the effect of the addition of pure titanium oxide nanoparticles (TiO2 NPs) prepared by the sol–gel technique on a polystyrene (PS)/polyvinylchloride (PVC) polymer blend of a composition of 50/50 wt. % using the casting method. X-ray diffraction (XRD), high-resolution transmission electron microscopy, field emission scanning electron microscopy, and energy dispersive x-ray analysis confirmed the preparation of TiO2 NPs in semi-spherical shapes, with the average particle size ranging from 7 to 22 nm. The structural, optical, and dielectric properties of the prepared polymer nanocomposite films are restudied using different tools. In addition, the dielectric properties are studied. XRD and Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy confirmed the complexation and interaction between the PS/PVC polymer blend and TiO2 NPs. HRSEM images reveal that TiO2 NPs appeared as white spots inside the spherical domain of PS/PVC matrices. Optical properties such as absorbance, reflection, bandgap energy, refractive index, and optical dielectric (constant and loss) are studied. These results revealed that TiO2 NPs create inter-bands between valence and conduction bands. The addition of TiO2 NPs to the PS/PVC blend improves the electrical conductivity of the PS/PVC blend due to charge carrier buildup and increased polymeric chain segmental mobility inside the polymeric matrices.

Thermal stability, mechanical properties, and gamma radiation shielding performance of polyvinyl chloride/Pb(NO3)2 composites

Abstract Radiation shielding composites based on polyvinyl chloride (PVC) reinforced with different weight ratios of Pb(NO3)2 (5, 10, and 20 wt%) were prepared using the solution-casting technique. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy, and tensile testing method were used to characterize the PVC composite films. FTIR and XRD investigations illustrate the structural change and modification of the as-prepared PVC composites. The morphological analysis of the composite revealed that Pb(NO3)2 was dispersed uniformly within PVC polymer matrix. TGA revealed that the incorporation of Pb(NO3)2 improved the thermal stability of the investigated composites, whereas adding Pb(NO3)2 to the polymer matrix worsened its tensile properties. The as-prepared composite films were investigated for radiation-shielding of gamma-rays radioactive point sources (241Am, 133Ba, 137Cs, and 60Co). Linear attenuation coefficient (μ, cm−1), mass attenuation coefficient (μ/ρ, cm2/g), and half-value layer (HVL, cm) have been estimated from the obtained data using the MicroShield program. Reasonable agreement was attended between theoretical and experimental results. The deviation between the experiment and theoretical values of mass attenuation coefficient is being to be lower than 9%, and this can be correlated to the good distribution of Pb(NO3)2. The results revealed that adding Pb(NO3)2 to PVC polymer composites improved their mass attenuation coefficient.

Synthesis of barium-doped PVC/Bi2WO6 composites for X-ray radiation shielding

In this study, composites containing undoped and barium-doped Bi2WO6:Ba2+were investigated for their shielding against diagnostic X-ray. At first, Bi2WO6 and barium-doped Bi2WO6 were synthesized with different weight percentages of barium oxide through a hydrothermal process. The as-synthesized nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and Raman spectroscopy (RS). After that, some shields were generated with undoped and barium-doped Bi2WO6:Ba2+ nanostructure particles incorporated into polyvinyl chloride (PVC) polymer with different thicknesses and 15% weight of the nanostructure. Finally, the prepared samples were exposed to an X-ray tube at 40, 80, and 120 kV voltages, 10 mAs and, 44.5 cm SID (i.e. the distance from the X-ray beam source to the specimen). Linear and mass attenuation coefficients were also calculated for different samples. The results indicated that, among the samples, the one with 7.5 mmol barium-doped Bi2WO6 had the most attenuation at the voltage of 40kV, and the attenuation coefficients would increase with an increase in the amount of barium. The samples with 15 and 17.5 mmol barium-doped Bi2WO6 had higher attenuation than the others at 80 and 120 kV. Moreover, the half-value layer (HVL), tenth-value layer (TVL) and 0.25 mm lead equivalent thickness were calculated for all the samples. The lowest HVL value was for the sample with 7.5 mmol barium-doped Bi2WO6. As the result clearly show, an increment in the barium-doping content leads to a decrease in both HVL and TVL.In every three voltages, 0.25 mm lead equivalent thickness of the barium-doped composites (7.5 mmol and 15 mmol) had less than the other composites. The lowest value of 0.25 mm lead equivalent thickness was 7.5 barium-doped in 40 kV voltage and 15 mmol barium-doped in 80 kV and 120 kV voltages. These results were obtained only for 15% weight of the nanostructure.

In situ growth of photocatalytic Ag-decorated β-Bi2O3/Bi2O2.7 heterostructure film on PVC polymer matrices with self-cleaning and antibacterial properties

Polymer materials with strong bactericidal properties by impregnating or complexing antibacterial agents were used in daily life. However, based on polymer matrices, the simultaneous acquisition of more environmentally and friendly self-cleaning and sterilization properties may be more beneficial to human health. Herein, a petal-like network photocatalytic β-Bi2O3/Bi2O2.7 heterostructure film with a thickness of ca 0.81 μm was gradually formed layer upon layer on polyvinyl chloride (PVC) polymer matrices through one-step hydrothermal process for the first time, and decorated Ag nanoparticles as co-catalyst. The Ag-decorated β-Bi2O3/Bi2O2.7 heterostructure film showed hydrophobicity, degradation of 97% Rhodamine B (RhB) in 150 min, inactivation of > 99.99% Escherichia coli (E.coli) in 18 h, and E.coli anti-adhesion performance. The photocatalytic properties were mainly ascribed to the generation of ·O2− and h+ due to the synergistic effects of petal-like hierarchical microstructure, good interface quality and accelerated carriers separation among β-Bi2O3, Bi2O2.7 and Ag particles. Furthermore, it was found that the grown of the bismuth oxide film on polymer matrices in the hydrothermal environment was selective to the types of polymer matrices. Our design can provide a reference to construct other photoactive functional films on polymer matrices and further collaborative applications and have the potential application prospects in the building and medical field.

The Effect of Titanium Tetra-Butoxide Catalyst on the Olefin Polymerization.

The purpose of this study was to assess the ability of titanium Ti(IV) alkyloxy compounds supported by organic polymer polyvinyl chloride (PVC) to polymerize ethylene by feeding triethylaluminium (TEA) as a cocatalyst. Additionally, the impacts of the molar ratio of [Al]/[Ti] on the catalytic activities in ethylene’s polymerization and of the comonomer through utilization of diverse quantities of comonomers on a similar or identical activity were studied. The optimal molar ratio of [Al]/[Ti] was 773:1, and the prepared catalyst had an initial activity of up to 2.3 kg PE/mol Ti. h. when the copolymer was incorporated with 64 mmol of 1-octene. The average molecular weight (Mw) of the copolymer produced with the catalysts was between 97 kg/mol and 326 kg/mol. A significant decrease in the Mw was observed, and PDI broadened with increasing concentration of 1-hexene because of the comonomer’s stronger chain transfer capacity. The quick deactivation of titanium butoxide Ti(OBu)4 on the polymers was found to be associated with increasing oxidation when supported by the catalyst. The presence of Ti(III) after reduction with the aluminum alkyls cleaves the carbon-chlorine bonds of the polymer, producing an inactive polymeric Ti(IV) complex. The results show that synergistic effects play an important role in enhancing the observed rate of reaction, as illustrated by evidence from scanning electron microscopy (SEM). The diffusion of cocatalysts within catalytic precursor particles may also explain the progression of cobweb structures in the polymer particles.

An Innovative Tubular Standing Support Incorporating PVC and FRP Composites: Laboratory Tests

The importance of developing innovative support structure for underground mines has drawn much attention with the depletion of shallow resources. This paper presents a hybrid tubular standing support consisting of an exterior container made of the polyvinyl chloride (PVC) and fibre-reinforced polymer (FRP) while the infill is the coal rejects based backfill material. The FRP jacket featured with the high strength-to-weight ratio is attached on the exterior surface of the PVC tube with the large rupture strain to provide confinement to infilled backfill material. A series of laboratory tests were conducted on this FRP-PVC tubular standing support (FPTSS) with different FRP thickness. Meanwhile, the FRP tubular standing support and the PVC tubular standing support with the sole confining material were also prepared and tested. Tests results showed that the FPTSS specimen exhibited the typical strain hardening behaviour attributed to the effective confinement provided by the combined container. It is also indicated that the enhancement of either the compressive strength or the axial deformation ability is closely related to FRP thickness. The other comparative advantage of FPTSS obtained from this research is its ductile post-peak behaviour after the rupture of the exterior FRP jacket, indicating the importance of using PVC tube in FPTSS. Except for its superior compressive behaviour, the cost effectiveness and ease of construction of FPTSS are also attractive from the design aspect.

Polymer Composites Based on Polyvinyl Chloride and Biomass of Fallen Leaves

The results of assessing the possibilities of using of biomass of fallen leaves as a filler of composite polymer materials with a polyvinyl chloride polymer matrix are presented. Samples of composites with biomass of fallen leaves we obtained by extrusion and hot pressing method. The dependences of their physical and mechanical properties on the content of the filler were determined. These de-pendencies are given in the form of polynomial of the second degree. In terms of most physical and mechanical properties (with the exception of impact strength) composites with biomass of fallen leaves are superior to samples of wood-polymer composites with wood flour with a similar degree of filling. Made of a comparison of the effectiveness of three different plasticizers: dimethyl phthalate, dibutyl phthalate and dioctyl therephthalate. The most promising is the use of dibutyl phthalate as a plasticizer. It has been shown that the biomass of fallen leaves is an effective replacement for wood flour in the production of wood-polymer composite materials with a s fr.

Selective Consecutive Determination of Desloratadine and Montelukast Sodium in Their Pure and Binary Dosage Form Based on Pencil Graphite Electrochemical Sensors.

In this study, we present a new, green electrochemical method for potentiometric estimation of desloratadine and montelukast sodium in their pure and binary dosage form. For that, three pencil graphite sensors were fabricated; the first one was prepared to analyse desloratadine drug (DES) by coating the graphite bar with the coating membrane, which comprises the ion pair of desloratadine and ammonium reineckate reagent (RNK), the polymer poly vinyl chloride (PVC), and the plasticizers dibutyl phthalate (DBP). The second one, which was used to analyse montelukast (MON), was constructed by using the ion pair of cadmium chloride reagent (Cd.) with montelukast and the same earlier named polymer and plasticizer. As a trial to analyse both of the drugs by the same sensor consecutively, we have constructed a combined pencil graphite electrode, which contains the two earlier suggested ion pairs, that is, we can use this electrode to selectively analyse for each drug. The proposed electrodes were effectively used for analysis of DES and MON as a single dosage form and as combined pharmaceutical preparation, without any need for prior separation that was performed depending on the difference in the efficient pH range for each sensor. The proposed sensors exhibited a Nernstian equation slopes of −30.11, 27.70, (−29.16, 29.79) mv. decade−1 in the linearity range 5.00 × 10−5−1.00 × 10−2 and 1.00 × 10−5 − 1.00 × 10−2 M, respectively. The sensors exhibit high sensitivity according to LOD values ((0.036–0.018) − (0.025-0.026) µM), respectively, and important selectivity toward the studied drugs in presence of interfering ions and excipients. The optimum circumstances were studied, and the method was validated by application of ICH rules. Finally, the method was compared with a documented method, and the required statistical values were calculated.

Studies about aging and corrosion of galvanized steel and polyvinyl chloride shielded cable caused by fireproof mud

Fireproof mud is a widely-used sealing and plugging material in power and construction industry, yet it may cause aging/corrosion problems to its directly contacted materials, leading to high safety risk. However, studies about the aging/corrosion behavious caused by fireproof mud are surprisingly rare. To fill in such a research gap, aging and corrosion of galvanized steel and polyvinyl chloride (PVC)-shielded cable caused by fireproof mud under simulated hygrothermal environment have been systematiclly investigated, based on which the mechanisms of these processes have been proposed. The results show that the corrosion of galvanized steel is mainly influenced by chloride anions from the fireproof mud, which can be aggravated/ alleviated if the fireproof mud is acidic/alkaline. For the aging of PVC shielded cable, one main reason is acidic/alkaline chemical corrosion caused by acidic/alkaline fireproof mud, the other is radical chain reaction of the PVC polymer in hygrothermal environment. These discoveries can offer important guidance for correct and safe use of fireproof mud in industries, thus ensure safe industrial production.

Glass bead effects on tribological and mechanical properties of plasticized polyvinyl chloride cable used in vehicles as a filler

Glass bead effects on mechanical and tribological properties of the plasticized polyvinyl chloride polymer, which is used for the vehicle's wire and cable insulation, are studied. Glass beads filler is added to the plasticized polyvinyl chloride thermoplastic polymer at ratios of 5, 10, and 20 wt.% by weight in the experimental study. Tensile, hardness, and tribological tests of the plasticized polyvinyl chloride were performed in the study. Tensile strength, tensile modulus, elongation at break, hardness, coefficient of friction, and wear rate values of the glass bead filled plasticized polyvinyl chloride composites were determined for measuring performance. As for the results of the study, the tensile strength, elongation at break, coefficient of friction, and wear rate values decreased while the tensile modulus and hardness values increased with the increase of the glass beads filler content in plasticized polyvinyl chloride composites for use in vehicle’s wire and cable insulation.

A novel thin film composite forward osmosis membrane using bio-inspired polydopamine coated polyvinyl chloride substrate: Experimental and computational fluid dynamics modelling

A novel low-cost polyvinyl chloride (PVC) membrane was synthesized by phase inversion and fast and facile bio-inspired technique was used for substrate modification of a thin-film composite (TFC) forward osmosis (FO) membrane. Using DI water as feed solution (FS) and 1 M NaCl as draw solution (DS), water flux (WF) ranging from 4.15 to 15.95 LMH and reverse salt flux (RSF) ranging from 0.87 to 3.50 gMH were produced when the dope polymer solution concentration decreased from 17 to 10 wt%. Then, the substrate with 10 wt% PVC was selected for modification and the substrate was coated by dopamine (DA) solution for 1 and 3 h to enhance the membrane hydrophilicity and facilitate interfacial polymerization. Compared to the pristine membrane, the 1 h polydopamine (PDA) modified membrane displayed higher WF (18.90 LMH) and lower RSF (3.35 gMH). Whereas, for the longer coating time, WF decreased (9.70 LMH) due to the membrane surface pores blocking by the PDA layer. Finally, for understanding whether the experimental data can be supported by a theoretical model, the obtained experimental results were compared with a developed computational fluid dynamics (CFD) model and the results showed acceptable agreement with each other. The results of this work introduce a low-cost and facile approach for FO membrane fabrication by utilizing PVC polymer and PDA coating.

Thermochemical Analysis of the Interaction between Interfaces in Composites Containing Nanodispersed Powders of Al and Al2O3

Isothermal microcalorimetry is used to study interfacial interaction in composite films based on electron-donor (polystyrene) and electron-acceptor (polyvinyl chloride) polymers containing Al and Al2O3 nanodispersed powders obtained via the electrical explosion of wire. According to the enthalpies of adhesion in composites and the enthalpies of wetting of dispersed powders with solvents of different chemical natures, it is found that Al2O3 surfaces exhibit mainly electron acceptor properties in interfacial interaction, while Al surfaces display both acceptor and donor properties. The results from calorimetric studies are consistent with data from IR spectroscopy of composite films.

Effects of Dibutyl Phthalate on Hepatocytes Histone Acetylation Modification and Liver Function in Rat

Dibutyl phthalate (DBP) is one of the most commonly used as additives for polyvinyl chloride (Polyvinyl chloride polymer, PVC)...

Structural, Optical and Photocatalytic Properties of PVC/CdS Nanocomposites Prepared by Soft Chemistry Method

This work investigates the preparation of cadmium sulfide nanoparticles (CdS) embedded in the polymeric polyvinylchloride (PVC) matrix. PVC/CdS nanocomposite films were prepared via sol–gel method with deposition by spin-coating on glass substrates. Effects of CdS nanoparticles on the structural, morphological, optical and photocatalytic properties of the synthetized nanocomposite were studied. Results of XRD and Raman analysis confirm the formation of CdS nanoparticles with hexagonal phase in the PVC matrix, with average crystallite size between 17 to 69 nm. The UV–vis spectroscopy reveals that the transmission is between 80 and 95% in the visible region, and a direct energy bandgap between 4.07 eV for 3.85 eV. The PL emission spectra indicate the interstitial cadmium defect states. In addition, the surface modifier (PVC) exert great influence not only on the optical performance of the particles themselves but also on the size distribution of the particle in the PVC matrix. The photocatalytic study shows a good potential of PVC/CdS nanocomposites films for MB degradation under UV light irradiation.

Biodegradation of Polyvinyl Chloride (PVC) in Tenebrio molitor (Coleoptera: Tenebrionidae) larvae

Tenebrio molitor larvae (Coleoptera: Tenebrionidae) are capable of depolymerizing and biodegrading polystyrene and polyethylene. We tested for biodegradation of Polyvinyl Chloride (PVC) in T. molitor larvae using rigid PVC microplastic powders (MPs) (70–150 μm) with weight-, number-, and size-average molecular weights (Mw, Mn and Mz) of 143,800, 82,200 and 244,900 Da, respectively, as sole diet at 25 °C. The ingestion rate was 36.62 ± 6.79 mg MPs 100 larvae-1 d-1 during a 16-day period. The egested frass contained about 34.6% of residual PVC polymer, and chlorinated organic carbons. Gel permeation chromatography (GPC) analysis indicated a decrease in the Mw, Mn and Mz by 33.4%, 32.8%, and 36.4%, respectively, demonstrating broad depolymerization. Biodegradation and oxidation of the PVC MPs was supported by the formation of OC and OC functional groups using frontier transform infrared spectroscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR), and by significant changes in the thermal characteristics using thermo-gravimetric analysis (TGA). Chloride released was counted as about 2.9% of the PVC ingested, indicating limited mineralization of the PVC MPs. T. molitor larvae survived with PVC as sole diet at up to 80% over 5 weeks but did not complete their life cycle with a low survival rate of 39% in three months. With PVC plus co-diet wheat bran (1:5, w/w), they completed growth and pupation as same as bran only in 91 days. Suppression of gut microbes with the antibiotic gentamicin severely inhibited PVC depolymerization, indicating that the PVC depolymerization/biodegradation was gut microbe-dependent. Significant population shifts and clustering in the gut microbiome and unique OTUs were observed after PVC MPs consumption. The results indicated that T. molitor larvae are capable of performing broad depolymerization/biodegradation but limited mineralization of PVC MPs.

Ratiometric ultrasensitive optical chemisensor film based antibiotic drug for Al(III) and Cu(II) detection

Herein, we developed and designed a novel ratiometric optical chemisensor film for determining Al(III) and Cu(II) in low concentration ranges. The chemisensor film consists of (a) antibacterial drug Ciprofloxacin (CPFX) [1-cyclopropyl-6-fluoro1,4-dihydro-4-oxo-7-(piperaziny-l-yl) quinolone-3carboxylic acid] and (b) a reference dye 5,10,15,20- tetrakis (pentafluorophenyl) porphyrin (TFPP) in a polyvinyl chloride (PVC) matrix. PVC was applied as a homogeneous system for mixing CPFX and TFPP. The emission intensity of the CPFX in the PVC matrix varies depending on the concentrations of the Al(III) and Cu(II) ions. When the sensor film is immersed in different Al(III) concentrations, a significant fluorescence enhancement of the CPFX at (427 nm) is observed. Furthermore, the fluorescence intensity of the red emission of the TFPP dye at (644 nm) does not alter. However, in the presence of Cu(II) ions, a considerable emission quenching of the CPFX peak at (427 nm) is observed. PVC provides a great permeability and penetration facilities of dissolved ions that make the sensor film sensitive to Al(III) or Cu(II) changes outside the matrix. The film displays immense sensitivity depending on their distinctive optical characteristics of CPFX and detection capabilities within a low detection limit LOD for Al(III) and Cu(II). The LOD values were estimated to be 2.05 x 10−7 M and 1.04 x 10−7 M respectively with a relative standard deviation RSDr (1%, n=3). Density functional theory (DFT) and the time-dependent DFT (TDDFT) theoretical calculations were performed to study Cu(II) and Al(III) complexation structures and their electronic properties in solution and in the sensor film. The interference of the chemisensor film was examined using different cations and the chemisensor provides significant selectivity. We develop a new ratiometric chemisensor based on PVC polymer film for Al(III) and Cu(II) detection.