<i>In Situ</i> Preparation of Core Shell-Polypyrrole /Poly (Acrylonitrile-Co-Vinyl Acetate) Nanoparticles and Their Nanofibers

Abstract

Poly (acrylonitrile-co-vinyl acetate)/polypyrrole composite particles with uniform size and morphology have been synthesized using one-step polymerization that involves swelling and coating of polypyrrole (PPy) into P (AN-co-VAc) latex nanoparticles. As an initial stage, free radical copolymerization of acrylonitrile (AN) and vinyl acetate (VAc) was synthesized by emulsion polymerization using ammonium persulfate (APS) and dodecyl benzene sulfonic acid salt (DBSA) as a surfactant. P (AN-co-VAc)/PPy composites were obtained first time by in situ addition of the pyrrole into the reaction medium. The electrospun P (AN-co-VAc)/PPy nanofibers were obtained from the nanoparticles with better properties and the effect of PPy on the morphology of nanofibers was studied by scanning electron microscopy (SEM). High degree of homogeneity and molecular order induced by molecular dispersion of polypyrrole on copolymer matrix without phase separation improve the transport properties and stability of polypyrrole, which are critical for high-performance organic electronics.

Electrospun nanofibers of poly (acrylonitrile-co-itaconic acid)/silver and polyacrylonitrile/silver:In situpreparation, characterization, and antimicrobial activity

“…Synthesis of P(AN-co-IA) copolymer and PAN homopolymer P(AN-co-IA) copolymer was synthesized by emulsion polymerization utilizing water, SDBS and APS as dispersion medium, surfactant, and initiator, respectively. The polymerization was lasted for 3 h at 70 C and then stopped using ethanol and then cooled to room temperature as in previous studies [41][42][43]. The obtained emulsion latex was precipitated and washed with ethanol and water for five times.…”

Poly(acrylonitrile-co-itaconic acid)–poly(3,4-ethylenedioxythiophene) and poly(3-methoxythiophene) nanoparticles and nanofibres

“…In a study, Unsal et al [10] copolymerized AN with butylacrylate and pyrrole; they showed that by incorporation of butylacrylate to the system, the mechanical properties of the resulting polymer improved. Copolymerization of P(AN-co-IA)-polypyrrole was achieved by Arman and Sarac [14] via emulsion polymerization for the synthesis of AN and vinylacetate in order to investigate the morphology of the nanocomposites. Bhanu et al [11] used methylacrylate for copolymerizing with AN and they carried out synthesis and characterization of the produced polymer.…”