Pyrrole/N‐p‐toluenepyrrole copolymers in the presence of surfactants: A promising material for glucose sensing

Abstract

In this study, pyrrole/N‐para‐toluenpyrrole (Py/NptPy) copolymers were synthesized by chemical oxidative polymerization method. The effects of different kinds of (anionic, cationic, and nonionic) surfactants on the properties of copolymer were investigated. The structural, morphological, thermal, and conductivity properties of the copolymers were investigated by using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and the four‐probe measurement device respectively. FTIR spectra of copolymers synthesized in different environments that support the formation of copolymer. SEM results show that the morphologies of copolymers synthesized in the presence of surfactant are more homogeneous and the particle sizes are smaller than that of polypyrrole (PPy). TGA results revealed that the thermal stabilities of Py/NptPy‐NaDBS (400°C) and Py/NptPy‐Tween 20 (260°C) copolymers were higher than surfactant free Py/NptPy copolymer (180°C) according to their initial decomposition temperatures. It was determined that the conductivity values of copolymers were higher than PNptPy. Glucose sensor properties of copolymer synthesized in the presence of tetradecylthreemethyl ammonium bromide (TTAB) were investigated with cyclic voltammetry (CV) method. Michaelis–Menten constant of Py/NptPy‐TTAB copolymer modified electrochemical biosensor was calculated as 5.30 mM. POLYM. ENG. SCI. 56:995–1003, 2016. © 2016 Society of Plastics Engineers

Hydrogenation of crotonaldehyde over ligand-capped Ir catalysts: Metal-organic interface boosts both activity and selectivity

“…As shown in Fig. S3(b), the Ir/BN-C1 and Ir/BN-C3 catalysts show distinct O2 consumption peaks at 320-325 °C, which is close to the decomposition temperature of TTAB [50], thus indicating the oxidation of TTAB residues on the catalyst surface. However, for the Ir/BN-C5 calcined at 500 °C and the Ir/BN-IM-C3 catalyst prepared via impregnation, there is no observable O2 consumption, suggesting negligible carbonaceous species in these two catalysts.…”

Synthesis, characterization, conductivity, and gas‐sensing performance of copolymer nanocomposites based on copper alumina and poly(aniline‐co‐pyrrole)

“…[8] The synthesis of polymer nanocomposites and copolymers can be utilized to resolve these paucities. [9,10] Thus, the ideology behind the synthesis of copolymer nanocomposites is that they possess excellent properties by removing discrepancy of properties of individual polymers. The inference made out of numerous research work is that the incorporation of metal oxide nanoparticles enhances the electrical, magnetic, and thermal properties of the polymer.…”

Development of a new two‐enzyme biosensor based on poly(pyrrole‐co‐3,4‐ethylenedioxythiophene) for lactose determination in milk

“…Generally, the immobilization of enzymes is achieved either by in situ entrapment during electrochemical polymerization in an enzyme‐containing solution or by postimmobilization, such as the covalent binding of enzymes to conducting polymer films and their adsorption onto conducting polymer films . The applications of CPs to biosensors have been reviewed in literature . Among these CPs, polypyrrole (PPy) is one of the most extensively studied conducting polymers because of its high electrical conductivity, low cost, considerable environmental stability, and interesting technological applications in the fabrication of biosensors .…”