Polyvinyl Alcohol Chains Research Articles

Liquid crystalline texture and hydrogen bond on the thermal conductivities of intrinsic thermal conductive polymer films

Polymer-dispersed liquid crystal (PDLC) films comprising polyvinyl alcohol (PVA) and liquid crystal monomer (LCM) were successfully obtained by the method of solution casting & thermal compressing. LCM was distributed orderly in PVA matrix by hydrogen bond interaction, to form PVA-LCM interpenetrating-layered networks. When the mass fraction of LCM was up to 35 wt%, the corresponding in-plane thermal conductivity coefficient (λ//) of PDLC film was significantly increased to 1.41 W m−1 K−1, about 10.8 times that of neat PVA (0.13 W m−1 K−1). High intrinsic λ// values of PDLC films were mainly attributed to the formed microscopic-ordered structures from ordered stacking of LCM, ordered arrangement of PVA chains, and their hydrogen bond interaction. This work would offer a new way to design and prepare novel intrinsic high thermal conductive polymers.

Polyvinyl alcohol-mediated splitting of Kevlar fibers and superior mechanical performances of the subsequently assembled nanopapers.

In this work, a composite of aramid nanofibers (ANFs) and polyvinyl alcohol (PVA) was prepared by PVA-assisted splitting of macro Kevlar fibers, which assures the uniform wrapping of PVA chains on the surface of ANFs, thus leading to an enhanced interfacial bonding strength between ANFs and PVA. The morphological characterizations manifest the enhanced diameters of the ANFs after PVA wrapping. The subsequently assembled ANFs/PVA paper shows a strength of 283.25 MPa and a toughness of 32.41 MJ m-3, which are increased by 57% and 152% compared to the pure ANF paper, respectively. The superior mechanical properties are attributed to the strong interfacial bonding strength, enhanced hydrogen bonding interactions, the densification of the materials, and curved fracture paths. Meanwhile, the ANFs/PVA paper also shows robust UV shielding and visible transparency properties, as well as excellent environmental stabilities, especially at high and low temperatures.

Flexible, fiber-shaped, quasi-solid-state Zn-polyaniline batteries with methanesulfonic acid-doped aqueous gel electrolyte

Although quasi-solid-state fiber-shaped Zn-polyaniline batteries (Fs-ZPBs) are safe and potentially wearable power sources, they exhibit severe capacity degradation due to the inherently low electrolyte conductivity, soluble quinone formation in the cathode, and anode corrosion. In this study, these problems are mitigated by supplementing a polyvinyl alcohol-based gel-type electrolyte with methanesulfonic acid, which forms intermolecular hydrogen bonds to connect polyvinyl alcohol chains with each other and link the polyaniline surface with the electrolyte. The establishment of these linkages increases the ionic conductivity of the electrolyte and enhances charge transfer at the polyaniline/electrolyte interface. The relatively large molecular size of methanesulfonic acid hinders the access of water to the active materials (polyaniline and Zn) while allowing polyaniline to be efficiently doped with small-radius Cl− anions. The effects of dual anion doping and water capture suppress polyaniline degradation and Zn corrosion, resulting in excellent battery performance, namely, 88.1% capacity retention after 2000 cycles and 92.7% capacity retention after 500 bending cycles at a 2.5 mm bending radius. Furthermore, an all-carbon-yarn Fs-ZPB is developed for applications requiring practical wearability.

Cellulose nanocrystalline hydrogel based on a choline chloride deep eutectic solvent as wearable strain sensor for human motion

Owning to the viscoelastic properties, good biocompatibility and high strain sensitivity, choline chloride-based deep eutectic solvent (DES) hydrogels have been considered to be promising wearable strain sensors for human motion. However, traditional hydrogels are far away from the wearable strain sensor applications caused by their unsatisfied conductivity and weak mechanical properties. Herein, the strategy for functional ionic inorganic/organic interpenetrating (IPN) hydrogels preparation by cyclic freezing/thawing method was successfully developed. Polyvinyl alcohol (PVA) was proposed to dissolve in choline chlorede-based DES as hydrogel matrix for the first time. Encouragingly, the obtained DES/PVA/CNCs/g-C3N4 hydrogel (choline chloride with glucose) exhibits excellent mechanical properties, included excellent tensile strength (≈ 2.55 MPa), high elongation (≈1200 %) and satisfactory tensile modulus (≈3.65 MPa). Interestingly, the thermal diffusivity (the maximum value was 0.675 W/mK) and conductivity (the maximum value was 0.18 mm2/s) of the DES-hydrogels were successfully achieved through adding graphitic-like nitride nanosheet (g-C3N4) and sustainable cellulose nanocrystalline (CNCs). These enhancements were attributed to the synergistic interactions of powerful hydrogen bonding among DES, CNCs, g-C3N4 and PVA chains. More importantly, the as-prepared hydrogels have the potential as a human motion sensor to accurately in-situ detect human activities on the fingers, wrists, elbows and knee joints. Those hydrogel-type strain sensors with flexibility, excellent mechanical properties, self-recovery, good heat transfer, and electrical conductivity have broad application prospects in the fields of intelligent robot, bionic prostheses, and human care areas.

PEO/PVA/LiOH Solid Polymer Electrolyte Prepared via Ultrasound-assisted Solution Cast Method

ABSTRACT Most solid polymer electrolytes (SPEs) still suffer from low ionic conductivity at room temperature, which may be caused by the inhomogeneity of polymer blend and Li-salt. Here, polyethylene oxide (PEO), polyvinyl alcohol (PVA), and lithium hydroxide (LiOH) SPEs were prepared by an ultrasonic method to improve the ionic conductivity and shorten the synthesis time. This procedure has successfully yielded a flexible, transparent, and homogeneous SPEs, which were thermally stable at fairly high temperature as revealed from thermogravimetric analysis (TGA). These samples also showed relatively high ionic conductivity at room temperature with the highest conductivity of 1.25 × 10−4 S/cm and low activation energy of 0.253 eV demonstrated by sample with 2 wt% LiOH loading. Moreover, this sample was also stable in the measured voltage range, i.e., -5 to 5 V. DFT calculation showed that strong intermolecular charge transfer was present in the interaction between Li+ ion with PVA and PEO chain.

Highly Strong and Transparent Ionic Conductive Hydrogel as Multifunctional Sensors

AbstractIonic conductive hydrogels as promising materials have become focus of artificial soft tissue or soft stretchable electronic devices. Especially, the next‐generation flexible electronics greatly require achieving multifunction simultaneously. Herein, a transparent hydrogel with high mechanical properties (1.73 MPa for mechanical stress, 630% for mechanical strain) and excellent ionic conductivity is fabricated based on a fully physical cross‐linked network. The stiff long polyvinyl alcohol (PVA) chains as a skeleton to form a “hard” network and the short polyacrylic acid (PAA) chains regard as the “soft” network. Moreover, the biomaterial β‐cyclodextrin (β‐CD) as physical cross‐linkers is used in the “hard–soft” hybrid networks. The construction of “soft and hard” structure is successful to integrate the good transparency, remarkable mechanical properties, and outstanding sensitivity (strain, pressure, pH, and organic solvent) together for assembling multiple sensors, which hold a promising practical development value in the domain of soft wearable electronics and sensing materials in the future.

Recyclable rubber-cement composites produced by interfacial strengthened strategy from polyvinyl alcohol

In recent years, waste rubber has been regarded as a potential additive or substitute for concrete and attracted widely concern. The polyvinyl alcohol (PVA) is one of the most important rubber binding agents in concrete. But, the mechanism of PVA bonding rubber and concrete at the atomic level is still unclarified. Therefore, the present study uses molecular dynamics (MD) to study the PVA-modified calcium silicate hydrate (C-S-H) and polybutadiene rubber (BR) interface. Through the analysis of the local structure, adhesion energy and dynamic properties of the interface, the modification mechanism of PVA is proved. Friction simulation verified that the performance of rubber concrete was improved at the molecular scale after inserting PVA. The PVA can serve as a bridge between C-S-H and BR that is mainly due to the improvement of the weak C-S-H/BR interfacial connection. First, the PVA and C-S-H can be tightly connected by Os-Ca-Op and Ow-Ca-Op ionic bonds. Moreover, originating from the increase of van der Waals interaction, the adhesion energy of PVA/BR is 13.24% higher than that of C-S-H/BR. From the local structure distribution, it can be found that the PVA chains can invade into the cross-linked polybutadiene rubber, which causes a steric hindrance between PVA and BR. The cross-linking of polybutadiene rubber can connect two long BR chains and has significantly restriction on rubber movement. The water molecules at the C-S-H interface act as a lubricant and make the rubber easier to slip, but the introduction of PVA limits the movement of water molecules. Further, PVA can reduce the movement of the cross-linked BR in the system. It is expected that this work will provide valuable information for designing high-performance rubber concrete.

Hydroxylated boron nitride nanotube‐reinforced polyvinyl alcohol nanocomposite films with simultaneous improvement of mechanical and thermal properties

AbstractStable dispersion of boron nitride nanotube (BNNT) in a solvent is a critical challenge that has restricted the development of potential applications. In this study, stable BNNT aqueous dispersions are obtained by direct tip sonication in water without any surfactant and organic solvent. BNNTs are functionalized with hydroxyl groups (OH) as a result of the tip sonication‐assisted hydrolysis. The energy from tip sonication results in the disentanglement of the as‐received BNNT clusters and partial B‐N bond cleavage to unzip nanotubes. Using the BNNT aqueous dispersion, a transparent, strong, and ductile OH‐BNNT‐reinforced polyvinyl alcohol (PVA) multifunctional nanocomposite film is prepared. Tensile fracture strength, Young's modulus, and elongation at failure of 1.0 wt% OH‐BNNT/PVA nanocomposite film increased by 46%, 55%, and 45%, respectively, in comparison with pure PVA film. The addition of a mere 1.0 wt% BNNT contributed to a significant (25%) improvement in thermal conductivity. Simultaneous improvement in mechanical and thermal properties is attributed to the superior intrinsic properties of homogenously dispersed BNNTs and strong interfacial interactions between OH‐BNNT and PVA chains.

Influence of chain interaction and ordered structures in polymer dispersed liquid crystalline membranes on thermal conductivity

Abstract Polymer dispersed liquid crystalline (PDLC) membrane with intrinsic thermal conductivity was prepared by dispersing liquid crystalline polysiloxane containing crosslinked structure (liquid crystalline polysiloxane elastomer (LCPE)) into polyvinyl alcohol (PVA). Chemical structures were characterized by Fourier transform infrared (FT-IR) and 1H-NMR, and microscopic structures were analyzed by polarizing optical microscope (POM), scanning electron microscope (SEM) and X-ray diffraction (XRD). The thermal conductivity of PDLC membrane was characterized by hot disk thermal constants analyzer, and the tensile properties were measured by tensile testing machine. Thermal properties were characterized by differential scanning calorimeter (DSC) and thermal gravimetric analyzer (TGA). The results show that LCPE was dispersed in PVA uniformly, and the mesogenic monomer of LCPE formed microscopic ordered structures in PDLC membrane. Meanwhile, hydrogen-bond interaction was formed between LCPE and PVA chain. Both microscopic-ordered structure and the hydrogen-bond interaction improved the phonon transmission path, and the thermal conductivity of PDLC membrane was up to 0.74 W/m⋅K, which was 6 times higher than that of pure PVA film. PDLC membrane possessed proper tensile strength and elongation at break, respectively 5.18 MPa and 338%. As a result, PDLC membrane can be used as thermal conductive membrane in electronic packaging and other related fields.

An ultrathin robust polymer membrane for wearable solid-state electrochemical energy storage

Abstract Developing lightweight, flexible, and foldable electrodes with decent mechanical durability and electrochemical activity is a highly desirable goal for solid-state electrochemical energy storage devices yet remains a formidable challenge to overcome. Herein, we invent a freestanding robust PANI membrane via introducing the dynamic boronate bond to bridge rigid PANI chains with complaint polyvinyl alcohol (PVA) chains. The resultant PANI/PVA membrane (PPM) exhibits remarkable elasticity (17.8% strain) along with excellent tensile strength (33.7 MPa), outperforming the majority of existing state-of-the-art flexible electrochemical PANI membranes. Additionally, the PPM can be further assembled into a wearable solid-state supercapacitor with high electrochemical performance as well as decent mechanical durability. The lightweight, flexible, and foldable PANI membrane represents a great advancement in electrode materials for next-generation wearable solid-state electrochemical energy storage devices.

Carbonization of Polydopamine-Coating Layers on Boron Nitride for Thermal Conductivity Enhancement in Hybrid Polyvinyl Alcohol (PVA) Composites.

Inspired by mussel adhesion proteins, boron nitride (BN) particles coated with homogeneous polydopamine (BNPDA) were prepared, and through an annealing process, a carbonized PDA layer on the surface of BN was obtained, which exhibited a nanocrystalline graphite-like structure. The effect of carbonization of PDA coating layer on BN particles was characterized by various analytical techniques including SEM, TEM, Raman spectroscopy, and XPS. When the resulting particles were used as a thermally conductive filler for polyvinyl alcohol (PVA) composite films, enhanced thermal conductivity was observed compared to raw BN composite due to the ordered structure and improved solubility in water. Furthermore, the homogeneous dispersion of the filler and excellent flexibility of the modified composite film with 21 wt % filler may be attributed to compatibility with the PVA chain. As the whole fabrication process did not use toxic chemicals (mainly water was used as the solvent), it may contribute to green and sustainable chemistry.

Clindamycin releasing bionanocomposite hydrogels as potential wound dressings for the treatment of infected wounds

The bionanocomposite hydrogels based on polyvinyl alcohol and egg white (as the matrix) and montmorillonite nanoclay (as reinforcement) were fabricated via the freezing-thawing technique. The prepared bionanocomposite hydrogels were loaded with clindamycin, as an effective antibiotic, to attain new potential wound dressings for healing the infected wounds. The microstructural properties of the bionanocomposite hydrogel wound dressings were characterized using the X-ray diffractometry, transmission electron microscopy, atomic force microscopy and gel fraction measurement. It was shown that all of the bionanocomposite hydrogel wound dressings had an exfoliated morphology and the montmorillonite layers acted as additional crosslinking zones to interconnect the polyvinyl alcohol and egg white chains. The characteristics of the prepared wound dressings were investigated using different experiments, including the water content, drying, water vapor transmission rate (WVTR), transparency and in vitro drug release tests. It was found that the equilibrium water content and WVTR were tended to decrease by increasing the loading level of montmorillonite in samples. The results showed that the drying period of bionanocomposite hydrogel wound dressings was prolonged by increasing the content of the incorporated montmorillonite. In vitro drug delivery experiments showed the cumulative fractional release of clindamycin and the clindamycin diffusion coefficient were decreased either by increasing the weight percentage of the incorporated montmorillonite into the wound dressings or by decreasing the pH of the release medium. It was also shown that the mechanism governing the release of clindamycin in all examined samples was the non-Fickian (anomalous) transport.

LiFePO4 spray drying scale-up and carbon-cage for improved cyclability

The growing market for electrical vehicles requires inexpensive, long-lasting batteries. LiFePO4 (LFP) melt-synthesized from ore concentrate fits this role, but the manufacturing process requires additional steps that includes grinding large ingots into a nanoparticle suspension followed by a dessication step. Spray drying, rather than tray drying, creates a mesoporous powder that enhances wettability. Adding lactose and high-Mw polyvinyl alcohol (PVA) to the suspension of nanostructures followed by pyrolysis, creates a carbon-cage that interconnects the cathode nanoparticles, imparting better capacity (LiFePO4/C: 161 mA h g−1 at 0.1C), discharge rate (flat plateau, 145 mA h g−1 at 5C), and cyclability (91% capacity retention after 750 cycles at 1C). Particle size affects battery stability; PVA increases the suspension's viscosity and alters the powder morphology, from spherical to hollow particles. A model describes the non-Newtonian suspension's rheology changing: shear, temperature, LFP and PVA loading. Carbon precursors prevent the nanoparticles from sintering during calcination but lactose gasifies 50% of the carbon, according to the chemical and allotropic composition measurements (CS analyzer, XPS, and Raman). The carbon-cage imparts microporosity and we correlate the SEM and TEM powder's morphology with N2 physisorption porosimetry. Ultrasonication of the suspension fragments the PVA chain, which is detrimental to the final cathode performance.

Deposition of MOFs on Polydopamine-Modified Electrospun Polyvinyl Alcohol/Silica Nanofibers Mats for Chloramphenicol Adsorption in Water

Nanofiber mats produced by electrospinning, with the advantages of specific surface area, porosity and chemical tenability, are an ideal support material for deposition of metal[Formula: see text]organic framework (MOF) crystals. In this study, four types of MOFs (MIL-53(Al), ZIF-8, UiO-66-NH2 and NH2-MIL-125(Ti)) were deposited on polydopamine (PDA)-modified electrospun polyvinyl alcohol (PVA)/SiO2 organic[Formula: see text]inorganic hybrid nanofiber mats by bulky synthesis. Because of the formation of Si–O–C–O–Si bridges between PVA chains and silica network, electrospun PVA/SiO2 organic[Formula: see text]inorganic hybrid nanofiber mats are quite stable in water or organic solvents and at high temperature are suitable as supports for MOFs deposition. The PDA layer, which exhibits a powerful adhesive ability to attach foreign objects, can effectively improve growth of MOFs on the surface of PVA/SiO2 nanofiber mats. The obtained MOF composites combining the unique properties of electrospun nanofibers mats and MOFs particles become flexible and tailorable, greatly expanding the application range of MOFs materials. The synthesized MOF composites were used to adsorb chloramphenicol (CAP) in water. It was found that the four MOF composites could remove CAP from water effectively and MIL-53(Al) composite had the highest adsorption capacity due to the higher specific surface area.

Promotion of anhydrous proton conduction by polyvinyl alcohol in liquid crystalline composite membranes containing 1-tetradecyl-3-methylimidazolium hydrogen sulfate

Composite membranes composed of liquid crystalline 1-tetradecyl-3-methylimidazolium hydrogen sulfate and polyvinyl alcohol are prepared for anhydrous proton conduction. The composite membranes exhibit smectic A liquid crystal phase in which polyvinyl alcohol chains aggregate into lamellas between the bilayers formed by the alkyl imidazolium hydrogen sulfate. Smectic order of hydrogen sulfate anions ensures formation of hydrogen-bonded chains for proton conduction via a hopping mechanism. Electrochemical measurements reveal that temperature-dependent ionic conductivity of the composite membranes approximately follows an Arrhenius-type law and reaches 20.5 mS cm−1 at 140 °C, which is twice that of the pure ionic liquid crystal. Potentiostatic polarization measurements show that proton transfer number of the composite membrane is also promoted. Polyvinyl alcohol promotes anhydrous proton conduction by constructing additional hybrid hydrogen-bonded chains consisting of hydroxyl groups of PVA and hydrogen sulfate anions. The ionic liquid crystalline composite membranes possess the potential application in intermediate temperature fuel cells.

Production and Kinetics of Swelling in Water of Biocompatible Branched Polyvinyl Alcohol Films

The interrelation of the synthesis conditions of polyvinyl alcohol chain branching products under the action of epichlorohydrin in an alkaline medium was established with the kinetic laws of swelling of films based on them in water. It was shown that conditions conducing to an increase in the branching density of the polyvinyl alcohol chain lead to an increase in the equilibrium degree of swelling in water. The possibility of growing cells of the M-22 line on the surface of branched polyvinyl alcohol films was demonstrated, which indicates their biocompatibility.

New Insights on the Dynamic Role of the Protecting Agent on the Reactivity of Supported Gold Nanoparticles

AbstractA very efficient catalyst (AuCePVA) was prepared by depositing gold colloids on CeO2 and using polyvinyl alcohol (PVA) as protective agent. Complete conversion and selectivity in furfural (2‐FA) oxidative esterification to methyl‐2‐furoate (Me‐2‐F) was obtained without base under conventional heating at 120 °C. AuCePVA was compared with Au/CeO2 obtained by deposition‐precipitation method, pointing out that along with the size of the Au nanoparticles and the surface sites of the ceria support, also PVA chains played a role during reaction. In situ FTIR spectroscopy measurements of adsorbed molecules at controlled temperature and pressure demonstrated that PVA acted not merely as gold stabilizer, but also as mediator during the 2‐FA oxidative esterification, leaving both Au and ceria sites available for catalysis at the reaction temperature. In a perspective of process intensification, the microwave‐assisted (MW‐assisted) 2‐FA oxidative esterification was carried out. Depending on the reaction time and temperature, AuCePVA favoured the oxidation of the hemiacetal into the ester rather than the re‐oxidation of the acetal into the ester, due to the formation of Ce3+ sites under MW irradiation.

Studies on the Hydration Behavior of Polyvinyl Alcohol in Aqueous Solution: A Kinetic Approach through the Hydrolysis of Benzocaine

AbstractThe present work investigates the structural and dynamical features of Polyvinyl alcohol (PVA) and surfactant–PVA system through the change in the rate of hydrolysis of benzocaine. The UV–Vis spectra of benzocaine showed that the absorbance values at λmax (284 nm) increased with the increase in PVA. The rate of hydrolysis decreased in the dilute‐ and high‐concentration regions of PVA, whereas it remains unchanged in the mid‐concentration range of PVA, known as the polymer–polymer interaction region. These observations correspond to the structural changes in PVA with the increase in PVA concentration in aqueous solution. The aggregation behavior of PVA was further studied using transmission electron microscopy micrographs. The rate constant for the hydrolysis of benzocaine showed peaked behavior with the increase in [CTABr] in the CTABr‐PVA mixed system. The sodium dodecyl sulphate (SDS) molecules modify the PVA chains into a more compact form, and so, the hydration number around PVA is decreased. Consequently, the less hydrophilic benzocaine entangles with SDS‐PVA, whereas OH– ions aggregate into the aqueous pseudophase, resulting in a decrease in the rate of hydrolysis in the SDS–PVA mixed medium. The calculated value of binding constant increased with the increase in PVA in both CTABr‐PVA and SDS‐PVA mixed systems.

Synthesis and Characterization of a Novel Erbium Doped Poly(vinyl alcohol) Films for Multifunctional Optical Materials

Polymer films based on poly vinyl alcohol (PVA) doped with different contents (0, 4, 8, 16, 20 and 28) wt% of Erbium(III) ions were synthesized by the simple solution casting technique. The structural characteristics of the films were studied by X-ray diffraction pattern (XRD), Fourier transform infrared (FT-IR) spectroscopy and atomic force microscopy measurements (AFM) measurement whereas the optical behavior of these films have been investigated using UV–Vis-NIR spectroscopy and photoluminescence measurements. The structural parameters of the interplanar (d) spacing, crystallite length (L) and the average interchain separation determined from the XRD and the absorption bands of the active IR groups recorded in FT-IR spectra indicate bonding of positively charged Er3+ ions with negatively charged OH groups of the PVA chains. The average cluster size (D) of the samples estimated from AFM data shows larger values than that obtained from XRD measurements. The optical gaps obtained from absorption spectra fitting and Tauch relations are approximately equal and slightly decreased by Er3+ ions incorporation in the PVA matrix whereas the high frequency refractive indices estimated according to Moss and Dimitrov formulae showing small increase. Three intense peaks of 607 nm, 733 nm and 783 nm wavelengths due to energy levels transitions of erbium were recorded in the photoluminescence spectra PVA–Er3+. The collected data support consideration of PVA–Er3+ films as a promising optical polymer material in microptics, planar polymer waveguides, polymer optical fiber and polymer light emitting diodes applications.

Effect of nanostructured metal oxides (CdO, Al2O3, Cu2O) embedded in PVA via Nd:YAG pulsed laser ablation on their optical and structural properties

Abstract The physiochemical properties of Polyvinyl Alcohol (PVA) film was enhanced by embedding with nanostructured metal oxides (CdO, Al2O3, and Cu2O) via one-pot and green method, nanosecond Nd:YAG pulsed laser ablation in liquids technique (PLAL). This process was carried by ablation of metal targets (cadmium, copper, and aluminum) immersed in PVA solution by high intensity pulsed laser in the focusing condition. The enhancing of the PVA properties were appeared by studying the structure, optical and morphology of the prepared films before and after embedding by several technique as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV–Visible, Photoluminescence (PL), Scanning electron microscope (SEM) and energy dispersive X-ray spectroscopy (EDX). From structural investigation, the XRD patterns showed a reduction of CdO, Al2O3, and Cu2O nanoparticles within PVA chain. From optical investigation, the interaction and the structural modifications occurred between PVA chains and each metal oxide nanoparticles appeared in stretching vibration bands, the optical energy band gap (Eg) values by using Tauc equation equaled to 2.33, 3.63, and 3.54 eV for the oxide of Cd, Al, and Cu, respectively, are a good agreement with previous work, and the Photoluminescence spectra showed decreasing in emission intensity in the case of embedding with metal oxides. From morphological investigation, the FE-SEM images showed a homogeneous distribution with spherical shape of metal oxides through the polymer of PVA. The qualitative and semi-quantitative elemental analysis of the prepared samples via EDX technique confirmed the embedding of the metal oxide in the PVA structure. This work helps to open the route to produce various properties of PVA by embedded with different nanostructured metal oxides.