Mole Fraction Of Monomer Research Articles

Gradation control in the hydrodynamic diameters of mixed glycan-aglycan glycovesicles

Abstract Glycovesicles mimic synthetic cell membrane surfaces and aid to delineate intricate, weak carbohydrate–protein interactions. In this report, the dependence of the hydrodynamic diameters in relation to the molar fractions of carbohydrate moieties in the mixed polydiacetylene (PDA) glycovesicles is evaluated. The glycovesicles are constituted with diacetylene monomers of varying molar fractions of carbohydrate moieties and the hydrodynamic diameters are assessed without and with polymerization of the vesicles. A strong dependence of the hydrodynamic diameter of glycovesicles is seen as a function of the molar fractions and the nature of the sugar moiety being either mono- or disaccharide. A monotonous increase in the hydrodynamic diameters of the glycovesicles occurs with the increase in mole fractions of the sugar monomer lipids. Upon polymerization, the hydrodynamic diameters reduce for the vesicles with lower mole fractions of sugar monomer, whereas the reverse occurs for glycovesicles possessing higher mole fractions. Disaccharide glycovesicles possess higher hydrodynamic diameters than monosaccharide-containing vesicles. Ligand–lectin interactions were probed with lactose disaccharide-containing glycovesicles with tetrameric peanut agglutinin lectin, from which an increase in the hydrodynamic diameters is observed, as the mole fraction of sugar monomer is increased in the PDA-glycovesicles.

Analytical Steady-State Model for the Free Radical Solution Copolymerization of Acrylonitrile and Vinyl Acetate and Their Charge-Transfer Complex in a Continuous Stirred Tank Reactor

In this study, a mathematical model of the copolymerization of AN-VA in a continuous stirred tank reactor (CSTR) was developed considering charge-transfer complexes (CTCs). CTC formation between acrylonitrile (AN) and vinyl acetate (VA) was demonstrated using UV-VIS spectrophotometry and molecular orbital theory. The rate constants and equilibrium constants of the complexes were calculated from a model of the simultaneous participation of complexes and free monomers and the molar ratio method. Furthermore, the participation of CTCs in propagation was included because of their high reactivity. All the simultaneous equations defined to analyze the reactor parameters were analytically solved, and the results of the model were in terms of operative variables such as monomer conversion, average molecular weight, and the mole fraction of monomer 2 (i.e., VA) in the polymer formed. The results of the predictions of the developed model were compared with the experimental data for validation. This prediction was also compared with the reactor model solution without considering the CTC, which showed deviations that were more significant than those of the CTC model. These results represent a quantitative way to analyze the order of magnitude of the impact of the formation of the complexes in the analyzed polymerization system.

In Situ NMR Measurement of Reactivity Ratios for the Copolymerization of 3,4-Dimethoxystyrene and para-Substituted Styrene

Poly(3,4-dimethoxystyrene-co-styrene) can be used as a precursor for the synthesis of underwater adhesives. The distribution of the comonomer segments in the copolymer chain is critical to the resulting performance of the adhesives. The present study examined the reactivity ratios for the copolymerization of 3,4-dimethoxystyrene and para-substituted styrene by using the Meyer–Lowry, Mayo–Lewis, and Kelen–Tüdös methods, where in situ 1H NMR was employed in monitoring the consumption profile of monomers. The effects of para-substitute groups, reaction temperature, and solvent on the reactivity ratios were studied. It was found that the para-substitute groups (H, methyl, and t-butyl) had little effect on the reactivity ratios for the copolymerization of 3,4-dimethoxystyrene and para-substituted styrene at 70 °C in toluene-d8. A lower reactivity ratio for styrene was found in the copolymerization of styrene and 3,4-dimethoxystyrene in toluene-d8 at a lower temperature of 60 °C than that at 70 and 80 °C. Although 3,4-dimethoxystyrene showed higher reactivity ratios than styrene under all the tested conditions, a nearly random copolymerization behavior was observed for the copolymerization of styrene and 3,4-dimethoxystyrene at 70 °C in the polar solvent DMSO-d6. Based on the present study, it is recommended to carry out experiments covering a large range of monomer mole fraction in feed when measuring reactivity ratios regardless of the analytical methods.

Molecular Dynamics Prediction of the Solubility of Paracetamol in Polyethylene Glycol- Polylactide Copolymer Formulations

The poor dissolution profile of insoluble drugs such as Paracetamol (PCM) has been unbearable in the pharmaceutical industry. However, drug-polymer formulations are known to remedy this challenge. This study investigates the molecular dynamic prediction of the solubility/miscibility of paracetamol-polyethylene glycol-polylactide (PCM-PEG-PLA) copolymer formulation. Polymer chain analysis of various mole fractions of PEG and PLA monomers indicates that an increase in the concentration of PLA and a subsequent decrease in the concentration of PEG increases the copolymer solubility. The results also show that copolymerization of PEG increased the chain flexibility of the copolymers and the miscibility of the drug-copolymer formulation by enhancing the solubility of the copolymers. The mobility of the drug was investigated under NVE, NPT, and NVT ensembles. The simulation yields a maximum diffusion coefficient of 1.44*10-10 m2/s for the NPT ensemble.

Synthesis and self-assembly of corona-functionalised polymeric arsenical nanoparticles

Polymeric arsenicals are emerging as an interesting platform for functional and (re)active materials in the field of polymer and (bio)materials science. Through exploiting the diverse and distinct reactivity of organic arsenicals in As(V), As(III) and As(I) oxidation states efficient methods for bioconjugation as well as hydrogel and nanoparticles formation have been reported. Here we expand on this body of work by reporting the synthesis of new amphiphilic block copolymeric arsenicals with a target composition of P((DMAm100-X-co-AsAmX)-b-DAAm100) (P1, X = 0; P2, X = 5; P3, X = 20) which form nanoparticles (NP1–NP3; Dh = 49–71 nm) upon self-assembly in water. The mole fraction of the AsAm monomer appears to have an effect on the particle morphology and stability, with stability decreasing as a function of the AsAm mole fraction in the corona. The reactivity of the AsAm (As(V)) group has been exploited to modify the corona functionality via direct reduction (NPRed) and sequential reduction and thiol substitution (NPGSH). The resulting As(III)-functionalised nanoparticles (NPRed) exhibited concentration-dependent toxicity against human prostate adenocarcinoma epithelia cell (PC-3) alluding to future development of these particles for mono- or combination therapy within appropriate nanoparticle formulations.

Combined gas electron diffraction and mass spectrometric experimental setup at Bielefeld University.

We have designed and constructed a combined experimental setup for synchronous measurements of electron diffraction patterns and mass-spectra of gas samples. Test measurements have been performed for acetic acid at two temperatures, 296 K and 457 K. Electron diffraction data have been analyzed taking into account mass spectra measured in the same experiments. From the diffraction intensities, molecular structures and mole fractions of the acetic acid monomer and dimer have been refined. The obtained results demonstrate the importance of measuring mass spectra in gas electron diffraction experiments. In particular, it is possible to detect the sample decomposition, which can be used for the optimization of experimental conditions and for the data interpretation. The length of the hydrogen bond in the acetic acid dimer determined in this work, re(O⋯H) = 1.657(9) Å, is in good agreement with modern theoretical predictions. We recommend measuring the diffraction patterns of acetic acid for the calibration of the sample pressure in the diffraction volume.

The effect of methane and odd-chain fatty acids on 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV) synthesis by a Methylosinus-dominated mixed culture

A methanotrophic community was enriched in a semi-continuous reactor under non-aseptic conditions with methane and ammonia as carbon and nitrogen source. After a year of operation, Methylosinus sp., accounted for 80% relative abundance of the total sequences identified from potential polyhydroxyalkanoates (PHAs) producers, dominated the methane-fed enrichment. Prior to induction of PHA accumulation, cells harvested from the parent reactor contained low level of PHA at 4.0 ± 0.3 wt%. The cells were later incubated in the absence of ammonia with various combinations of methane, propionic acid, and valeric acid to induce biosynthesis of poly(3-hydroxybutyrate) (PHB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Previous studies reported that methanotrophic utilization of odd-chain fatty acids for the production of PHAs requires reducing power from methane oxidation. However, our findings demonstrated that the PHB-containing methanotrophic enrichment does not require methane availability to generate 3-hydroxybutyrate (3HB) and 3-hydroxyvalerate (3HV)—when odd-chain fatty acids are presented. The enrichment yielded up to 14 wt% PHA with various mole fractions of 3HV monomer depending on the availability of methane and odd-fatty acids. Overall, the addition of valeric acid resulted in a higher PHA content and a higher 3HV fraction. The highest 3HV fraction (up to 65 mol%) was obtained from the methane–valeric acid experiment, which is higher than those previously reported for PHA-producing methanotrophic mixed microbial cultures.

Tuning Morphology and Thermal Transport of Asymmetric Smart Polymer Blends by Macromolecular Engineering

A grand challenge in designing polymeric materials is to tune their properties by macromolecular engineering. In this context, one of the drawbacks that often limits broader applications under high temperature conditions is their poor thermal conductivity $\kappa$. Using molecular dynamics simulations, we establish a structure-property relationship in hydrogen bonded polymer blends for possible improvement of $\kappa$. For this purpose, we investigate two experimentally relevant hydrogen bonded systems -- one system consists of short poly({N}-acryloyl piperidine) (PAP) blended with longer chains of poly(acrylic acid) (PAA) and the second system is a mixture of PAA and short poly(acrylamide) (PAM) chains. Simulation results show that PAA-PAP blends are at the onset of phase separation over the full range of PAP monomer mole fraction $\phi_{PAP}$, which intensifies even more for $\phi_{PAP} > 0.3$. While PAA and PAP interact with preferential hydrogen bonding, phase separation is triggered by the dominant van der Waals attraction between the hydrophobic side groups of PAP. However, if PAP is replaced with PAM, which has a similar chemical structure as PAP without the hydrophobic side group, PAA-PAM blends show much improved solubility. Better solubility is due to the preferential hydrogen bonding between PAA and PAM. As a result, PAM oligomers act as cross-linking bridges between PAA chains resulting in a three dimensional highly cross-linked network. While $\kappa$ for PAA-PAP blends remain almost invariant with $\phi_{PAP}$, PAA-PAM systems show improved $\kappa$ with increasing PAM concentration and also with respect to PAA-PAP blends. Consistent with the theoretical prediction for the thermal transport of amorphous polymers, we show that $\kappa$ is proportional to the materials stiffness, i.e., the bulk modulus K and sound velocity v of PAA-PAM blends.

Synthesis and coupling of ABx polysiloxane macromonomers to form highly branched polysiloxanes

This work focuses on the synthesis of polysiloxane ABx macromonomers with functional groups (A [Si-H] and B [vinyl]) incorporated on to the polymer backbone, and the coupling of these functionalities to form randomly, but highly, branched polymers. The synthesis of the ABx macromonomers was performed by the anionic copolymerization of hexamethylcyclotrisiloxane (D3) and 1,3,5-trivinyl-1,3,5-trimethylcyclotrisiloxane (V3) monomers, followed by an end-capping/termination reaction with chloro(methyl)phenylsilane. The resulting macromonomers were coupled by a Pt(0) catalyzed hydrosilylation reaction, to yield highly branched polysiloxanes. The coupling reaction was investigated at different solution concentrations and using macromonomers with different extents of vinyl content. It was shown that a higher solution concentration resulted in higher degrees of chain coupling and branching, arising from efficient intermolecular coupling in preference to (the competing) intramolecular coupling (cyclization) reaction. Moreover, an increase in the mole fraction of vinyl monomer also resulted in higher levels of branching. With the ability to control the degree of branching, the strategy reported here provides a facile route to synthesize branched polysiloxanes (silicones) with varying flexibility and elasticity.

Polycarboxylate superplasticizers of acrylic acid–isobutylene polyethylene glycol copolymers: monomer reactivity ratios, copolymerization behavior and performance

Acrylic acid–isobutylene polyethylene glycol (AA-TPEG) copolymers are typical of polycarboxylate superplasticizers (PCEs). AA-TPEG copolymers are prepared via free-radical polymerization with potassium persulfate as the initiator. The obtained copolymers were characterized by gel permeation chromatography (GPC) and infrared spectra (FTIR). The GPC method can break through the former limitations of the instruments and receive instantaneous unreacted and instantaneous monomer concentrations and not the initial monomer feeds. Since TPEG monomer is highly bulky, the common calculation methods for determining monomer reactivity ratios in copolymerization based on terminal copolymerization equation are not suitable. However, this study created non-linear least squares curve fitting of terminal copolymerization equation (NLLSQ-T) and penultimate copolymerization equation (NLLSQ-P) methods, which used Python’s NumPy, SciPy, and SymPy libraries to generate code and did numerical computations, bringing greater accuracy of monomer reactivity ratios. The monomer reactivity ratios were calculated with Fineman–Ross, Kelen–Tudos, YBR, NLLSQ-T, and NLLSQ-P methods and found to be r AA = 10.888, r′ AA = 1.131, r TPEG = 0.012, and r′ TPEG = 0.042 for AA-TPEG copolymers. Moreover, this study also explored specific copolymerization behavior of similar structure of copolymers with steric hindrance under penultimate copolymerization equation, such as dependence of the mole fractions in the copolymer on the mole fractions of unreacted monomers in solution, variation of copolymer compositions with conversion and sequence length distribution. The fluidity and flow loss of pastes containing PCEs were investigated, and the appropriate PCEs dosages resulted in a better workability of cement pastes.

Solvent Effect on the Sergeants-and-Soldiers Effect Leading to Bidirectional Induction of Single-Handed Helical Sense of Poly(quinoxaline-2,3-diyl)s Copolymers in Aromatic Solvents.

Random poly(quinoxaline-2,3-diyl) copolymers, containing chiral (S)-3-octyloxymethyl and achiral propoxymethyl side chain units, experience an abnormal sergeants-and-soldiers effect, that is, they adopt, depending on the chiral monomer mole fraction, either P- or M-helical conformations in anisole (PhOCH3) and benzotrifluoride (PhCF3). In benzene (PhH) and toluene (PhCH3), these copolymers exclusively adopt an M-helical conformation, regardless of the chiral monomer mole fraction. For a co-300mer, with a 40% mole fraction of chiral units, the selective induction of an M-helix (>99%) was observed in PhH, while in PhCF3, a P-helical conformation was induced selectively (>99%). This helix inversion of the polymer backbone is thus able to control the chirality of a chiral polymer ligand in aromatic solvents. The incorporation of a small amount of coordinating PPh2 groups into the copolymer resulted in a chiral macromolecular ligand, which allowed the enantioselective synthesis of both enantiomeric products in an asymmetric Suzuki-Miyaura coupling reaction (R-product: 91% ee in PhH; S-product: 95% ee in PhCF3) from a single catalyst.

Environmentally adaptable pathway to emulsion polymerization for monodisperse polymer nanoparticle synthesis

An environmentally adaptable method is proposed for emulsion polymerization to produce monodisperse polymer nanoparticles at surfactant concentrations much lower than conventional emulsion polymerization. The present method is based on an idea of employing a surfactant with a low critical micelle concentration (CMC) to generate a large number of polymer particles in the presence of micelles at low surfactant concentrations and to cease the particle generation by the micelle disappearance in early reaction stage for attainment of high monodispersity of particles. A hydrophobic monomer of styrene (St) and a less hydrophobic monomer of methyl methacrylate (MMA) were used in the present emulsion polymerization at a total monomer concentration of 0.3 M with an initiator of ammonium persulfate (APS) and a long alkyl chain surfactant of sodium octadecyl sulfate (SOS). The polymerization was conducted at a high APS concentration of 20 mM that gave the CMC as low as 0.085 mM for SOS. An increase in the monomer mole fraction of MMA increased the number of polymer particles, while the high monomer mole fraction of MMA failed to stabilize the dispersion of particles. The polymerization for a monomer ratio of St/MMA = 1/1 could produce monodisperse polymer particles of 33 nm at a surfactant concentration of 1 mM that was higher than its CMC (0.085 mM) but much lower than several ten mM of surfactant concentrations in conventional emulsion polymerization.

Deposition of aromatic polyimide thin films in supercritical carbon dioxide

The deposition of aromatic polyimide (API) thin films was carried out in supercritical carbon dioxide (scCO2) with 20mol% of N,N-dimethylformamide (DMF) as a cosolvent, and using 4,4′-diaminodiphenyl ether (ODA) and pyromellitic dianhydride (PMDA) as monomers. A new apparatus based on a flow method that consisted of a cold-wall type reactor and two supply lines for each of the API monomers was used. The effect on the morphology of the films was investigated at feeding monomer concentrations and deposition temperatures ranging from 5×10−4 to 5×10−6 on a mole fraction basis and from 423 to 523K, respectively. The results showed that increasing the monomer concentration and decreasing the deposition temperature increased the thickness of the films, and a smooth surface of the film was obtained at 423K. Additionally, FT-IR study and thermogravimetric (TG) analysis of the film deposited at monomer mole fractions of 5×10−5 and at a deposition temperature of 473K were also carried out. The FT-IR spectrum of the deposited film in scCO2 with DMF represented imide structures although there was a small peak of amide carbonyl stretching that originated from the polyamic acid and DMF. The TG curve indicated the temperature of 5% weight loss was more than 800K under an air atmosphere after complete imidization.

Free radical scavenging activity of homo and copolymer of aniline and para-phenylenediamine prepared in ZnCl2 medium

This study reports on the ability of homo and copolymer of aniline and para -phenylenediamine (pPDA) to act as antioxidants to free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH). Both the homopolymer and copolymer of aniline and pPDA at different molar ratios are synthesized on composite graphite electrode in phosphoric acid containing 0.5M zinc chloride. The antioxidant activity has been monitored using UV–visible spectroscopy. The spectra of reaction mixtures in methanol have indicated that the elimination of the DPPH radical is increased with increasing of mole fraction of pPDA monomer. This is also confirmed by electrochemical impedance spectroscopy which demonstrated that as more pPDA are available in the mole fractions, the scavenging of DPPH radicals becomes more efficient. Charge transfer resistance (Rct) value of polyaniline (PAni) film is 2×104 Ω, which is much larger than that of poly para-phenylenediamine (PpPDA).

Properties of the ternary mixtures of fluorocarbon and hydrocarbon nonionic surfactants at the water–air interface

Surface tension measurements of aqueous solutions of ternary surfactant mixtures of ethoxylated tert-octylphenol with 10 and 16 ethylene oxide groups, called Triton X-100 (TX100) and Triton X-165 (TX165), respectively, with the fluorocarbon surfactant Zonyl FSN-100 (FSN100) were carried out at 293K. Based on the surface tension isotherms, the Gibbs surface excess of surfactants concentration at the water–air interface was determined. Then the mole fractions of surfactants in the surface layer were compared with those in the bulk phase. Considering the different composition of the mixed monolayer at the water–air interface, calculated with and without the water content, the molecular interaction parameters of surfactants, their activity coefficients, activity toward water and binary mixtures and the free enthalpy of their mixing were also calculated. As follows from the measurements and calculations, among others, the values of the surface tension of the studied ternary mixture of surfactants at the concentrations corresponding to the saturated monolayer at the water–air interface can be predicted. It is possible to obtain these values on the basis of the monomer mole fraction of TX100, TX165 and FSN100 calculated without the water content at this interface and the values of the surface tension of single surfactants studied at an appropriate concentration.

Correlation between the Adsorption of the Fluorocarbon Surfactants at the Polymer–Solution and Solution–Air Interfaces and the Parameter of the Interfacial Interaction

Using the literature data of the surface tension and contact angle of the fluorocarbon surfactants Zonyl FSN-100 (FSO100) and Zonyl FSO-100 (FSO100) on polytetrafluoroethylene (PTFE) and polymethyl methacrylate (PMMA), the values of the interfacial tension at the PTFE/PMMA–solution interface were calculated. Because of the possibility of the existence of the surfactant film on the PMMA surface, these calculations for PMMA were performed in two ways, that is with the assumption that the surface tension of PMMA is constant and that it is changed proportionally to the values of the surface tension of aqueous solution of surfactants. Next, the values of the Gibbs surface excess concentration, activity, and monomer mole fraction of the studied surfactants at the PTFE/PMMA–solution interface were determined and correlated with the Lucassen-Reynders equation. Also the values of the parameter of the interfacial interaction were calculated on the basis of the Girifalco and Good and Neumann et al. approaches.

Electrically Conductive Films Made of Pyrrole-Formyl Pyrrole by Straightforward Chemical Copolymerization

Electrically conductive films were prepared by copolymerization of pyrrole (Py) and 2-formyl pyrrole (FPy) in the presence of trifluoroacetic acid (TFA) used as a catalyst in chloroform. Formation of the copolymer P(Py-co-FPy) films was examined, when the FPy monomer mole fractions was changed. The obtained films showed a metallic greenish black color and had electrical conductivity of 10–4 to 10–1 S/cm when I2 was doped in the copolymer films. As the mole fraction of the FPy increased from 0 to 0.5, the tensile strength of the films increased from 11.1 to 81.3 N/mm2. For analysis of the copolymerization, 1H NMR in deuterated chloroform was measured and the evidence was revealed that the formyl group of FPy was attacked by the acid catalyst before the copolymerization started.

Composition of Multicomponent Surfactant Systems at the Water–Air Interface

AbstractMeasurements of the surface tension of aqueous solutions of ternary and binary surfactant mixtures of p‐(1,1,3,3‐tetramethylbutyl) phenoxypoly(ethylene glycols), i.e., ethoxylated tert‐octylphenol with 8, 10 and 16 ethylene oxide groups, respectively called TOP8, TOP10 and TOP16, were carried out at 293 K. Based on the surface tension isotherms, the Gibbs surface excess of surfactants concentration at the water–air interface was determined and then recalculated for the Guggenheim‐Adam surface excess concentration of these substrates. Next the monomer mole fractions of surfactants in the surface layer were determined and compared with those calculated on the basis of both Rosen's approach and the composition in the bulk phase. Taking into account these different values of composition of the mixed monolayer at the water–air interface, the molecular interaction parameters of surfactants, their activity coefficients and the free enthalpy of their mixing were also calculated. As follows from the measurements and calculations, among other things, by the addition of the differences between the values of the mole fraction of surfactants calculated on the basis of Rosen's approach and those determined on the basis of surface excess concentrations, the mole fraction of the solvent at the water–air interface can be determined.

Circuit Model Evaluation of Poly(methyl pyrrole-co-2-(9H-carbazole-9-yl)ethyl methacrylate) on Carbon Fiber

Methyl pyrrole (N-MPy) and 2-(9H-carbazole-9-yl) ethyl methacrylate (CzEMA) monomers were electrocopolymerized on carbon fiber microelectrode (CFME) as an active electrode material. The electropolymerization of monomers was studied in 0.1 M sodium perchlorate (NaClO4)/acetonitrile (ACN) solution. The detailed characterization of the resulting electrocoated poly(N-MPy-co-CzEMA)/CFME thin films was studied by various techniques, i.e., cyclic voltammetry (CV), Scanning electron microscopy – Energy Dispersive X-ray analysis (SEM-EDX), and Electrochemical impedance spectroscopy (EIS). The effects of monomer mole fractions (mole fraction, XCzEMA = nCzEMA/nMPy + nCzEMA) (0.5, 0.66, 0.75, 0.83 and 0.91) during the preparation of modified electrodes were examined by EIS. Capacitive behaviors of modified CFMEs were defined via Nyquist, Bode-magnitude, Bode-phase and Capacitance plots. Circuit model of R(Q(R(C(R(C(RW))))))(CR) was suggested to fit the theoretical and experimental values. The lowest low frequency capacitance value and total charge (Q = 112.9 mC) during electrodeposition of polymer thin film by CV method in the mole fraction of XCzEMA = 0.75 (CLF = ∼27.2 mF cm−2). However, the highest double layer capacitance of polymer/electrolyte system (C1 = 25.4 mF cm−2; C2 = 159.1 mF cm−2; C3 = 4.54 mF cm−2) was obtained in the same mole fraction.

Poly(3,5-dithiophene-2-yldithieno[3,2-b;2′,3′-d]thiophene-co-Ethylenedioxythiophene)/Glassy Carbon Electrode Formation and Electrochemical Impedance Spectroscopic Study

3,5-Dithiophene-2-yldithieno[3,2-b;2′,3′-d]thiophene (Thy2DTT) and ethylenedioxythiophene (EDOT) were electro-copolymerized on glassy carbon electrode (GCE) in 0.1 M sodium perchlorate (NaClO4)/acetonitrile (ACN)/dichloromethane (CH2Cl2) (8:2) solution. Poly(Thy2DTT-co-EDOT)/GCE thin film was characterized by various techniques, such as Cyclic Voltammetry (CV), Fourier Transform Infrared Spectroscopy – Attenuated Transmittance Reflectance (FTIR-ATR), Scanning Electron Microscopy - Energy Dispersive X-ray analysis (SEM-EDX) and Electrochemical Impedance Spectroscopy (EIS). The effects of monomer mole fractions (mole fraction, XThy2DTT = nThy2DTT/nEDOT + nThy2DTT) (0.5, 0.66 and 0.83) during the preparation of modified electrodes were examined by EIS. Capacitive behaviors of the modified GCE were defined via Nyquist, Bode-magnitude, Bode-phase and Capacitance plots. The circuit model was used to fit the theoretical and experimental data through Kramers-Kronig Transform test. The lowest frequency capacitance (CLF) value was obtained as CLF = 0.89 mFcm−2 for poly(Thy2DTT). However, the highest CLF was obtained for the copolymer as CLF = 1.11 mFcm−2 for XThy2DTT = 0.66 and 0.83. Potential application of the copolymer could be energy-storage devices.