Abstract
A novel conducting graft copolymer (PVCEE-g-PPy) of poly(vinyl carboxy ethyl ether) (PVCEE) and polypyrrole (PPy) was prepared by electrochemical polymerization of pyrrole using a precursor, poly(vinyl pyrrolyl propanone ether) (PVPPE). For synthesis of the graft copolymer, PVCEE was first synthesized by reacting poly(vinyl alcohol) with 3-chloro propionic acid. The precursor PVPPE for PVCEE-g-PPy was then synthesized from PVCEE. The chemical structures of PVCEE and PVPPE were confirmed by FT-IR spectroscopy and 1H-NMR. Electrochemical properties of the novel conducting graft copolymer were compared with those of the PVCEE/PPy composite using cyclic voltammetry (CV) and chronoamperometry (CA). It was confirmed that the pyrrolyl group of the precursor polymer can act as the nuclei for the graft polymerization of pyrrole into PVPPE.
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