The Self-assembly Behavior of PS-PMMA/PMMA in Selective Solvents

Abstract

Abstract: The self-assembly of PS-PMMA/PMMA in selective solvents was studied by dynamic laser light scattering(DLS) and transmission electron microscope(TEM). The selective solvent was the good solvent for PS block while it was a precipitant for PMMA block and homopolymer. The results showed that the PS-PMMA/PMMA with a proper molecular weight and composition could self-assemble into micelles with mono-dispersity distribution. The homopolymer(PMMA) could assemble into the core of the micelles by a special interaction with the block PMMA and accelerate the process of the micellization. The micelles with different sizes can be obtained conveniently by adjusting the content of the homopolymer.

Key words: Poly(methyl methacrylate), Block-copolymer, Self-assembly, Micelle

CLC Number:

O614

TrendMD:

YIN Fen-Fang, SHI Lin-Qi, AN Ying-Li, ZHANG Wang-Qing, HE Bing-Lin, GUO Shi-Yi. The Self-assembly Behavior of PS-PMMA/PMMA in Selective Solvents[J]. Chem. J. Chinese Universities, 2003, 24(1): 160.

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The Self-assembly Behavior of PS-PMMA/PMMA in Selective Solvents

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