The Properties of St/AA/BA Core-shell Composite Encapsulated-Fe2O3 Nanoparticles

Abstract

Abstract: Fe₂O₃ nanoparticles were encapsulated in the core-shell composite copolymers of St/AA/BA (styrene/acrylic acid/butyl acrylate) by seed emulsion polymerization process.The influence of Fe₂O₃ on rheological behavior and glass transition temperature (T_g) of St/AA/BA core-shell composite copolymer was discussed. The result of DSC showed that the addition of Fe₂O₃ nanoparticles could decrease T_g for the composite copolymer. According to the rheological properties, the core-shell copolymers were all pseudoplastics and their nonNewtonian index was less than 1. The viscosity and △E decrease with the increase of the Fe₂O₃ content.

Key words: Encapsulating Fe₂O₃, St/AA/BA core-shell composite copolymer, Glass transition temperature, Rheological properties

CLC Number:

O632.12

TrendMD:

CHEN Ping, DU Hui, LIU Feng-Qi, LI Tie-Jin, TANG Xin-Yi. The Properties of St/AA/BA Core-shell Composite Encapsulated-Fe₂O₃ Nanoparticles[J]. Chem. J. Chinese Universities, 1998, 19(1): 148.

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The Properties of St/AA/BA Core-shell Composite Encapsulated-Fe₂O₃ Nanoparticles

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