Thermosensitive Particles with Unusual Morphology Prepared by Dispersion Copolymerization

Abstract

Abstract: The monodispersed polymeric particles with an unusual structure were prepared by the dispersion copolymerization of acrylonitrile/styrene(AN/St) in mixed solvents of ethanol/water by using the poly(N-isopropylacrylamide)(PNIPAAm) macromonomer as a reaction stabilizer.It was found that the AN monomer plays a key role in the formation of the particles with special morphology analyzed via scanning electron microscopy(SEM).The reaction parameters have remarkable influences on the particle size and morphology.The particles possess a thermosensitive property according to the result of laser light scattering(LLS).

Key words: PNIPAAm macromonomer, Acrylonitrile/styrene, Dispersion copolymerization, Morphology

CHEN Ming-qing, YUAN Yan-hua, LIU Xiao-ya, YANG Cheng, KANEKO Tatsuo, AKASHI Mitsuru. Thermosensitive Particles with Unusual Morphology Prepared by Dispersion Copolymerization[J]. Chemical Research in Chinese Universities, 2005, 21(6): 740-742.

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Thermosensitive Particles with Unusual Morphology Prepared by Dispersion Copolymerization

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