Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.4322/polimeros.2014.037
Polímeros: Ciência e Tecnologia
Scientific & Technical Article

Investigation of Nanocomposites Made with Poly(methacrylic acid-co-methyl methacrylate)/poly(N‑vinyl-2-pyrrolidone)/Multi-walled Carbon Nanotubes

Guoqin, Liu; Wei, Miao; Lin-jian, Shangguan

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Abstract

Poly(methacrylic acid-co-methyl methacrylate) (P(MAA-co-MMA)) was prepared in the presence of poly(N‑vinyl-2-pyrrolidone) (PVP) and multiwalled carbon nanotubes (MWNTs) via ultrasonic assisted solution free radical polymerization, i.e., P(MAA-co-MMA)/PVP/MWNTs nanocomposites. The morphology, glassy-state storage modulus, thermal behavior and swelling characteristics of P(MAA-co-MMA)/PVP/MWNTs nanocomposites were investigated. Scanning electron micrographs (SEM) revealed that MWNTs at low concentration could be uniformly dispersed into P(MAA-co-MMA)/PVP blends. With increasing MWNTs weight fraction, the average glassy–state modulus, glass transition temperatures and decomposition temperature of the nanocomposites increased, but their swelling characteristics decreased.

Keywords

P(MAA-co-MMA)/PVP/MWNTs, nanocomposites, morphology, dynamic mechanical properties

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