Electrical conductivity properties of P(MMA-St)/MWNTs composites

Abstract

Abstract: Methyl methacrylate-styrene copolymer-encapsulated multiwalled carbon nanotubes(MWNTs) composites were prepared via situ emulsion polymerization. The influence of the MWNTs content and the monomer ratio of the copolymer on the properties of composites were studied. The relationship between the structure, interaction and properties of the composites were initiated by SEM, FTIR, Raman and XPS. The results indicated that the thermal stability and electrical conductivity of the composites are enhanced with addition of MWNTs. When the content of MWNTs unchanged, the interaction between copolymers and MWNTs enhanced with increasing the content of PMMA chains segment. Copolymers are encapsulated on the surface of MWNTs evenly and the thermal stability and electrical conductivity of composites became higher.

Key words: P(MMA-St), MWNTs, in situ emulsion polymerization, bonding, doping

CLC Number:

O631.2+3

ZHI Hui, XU Xue-cheng. Electrical conductivity properties of P(MMA-St)/MWNTs composites[J]. Journal of East China Normal University(Natural Sc, 2012, 2012(4): 43-49, 60.

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