Monodisperse microspheres exhibiting discontinuous response to temperature change

被引：26
作者：
Matsuoka, H [1 ]
Fujimoto, K [1 ]
Kawaguchi, H [1 ]
机构：
[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Yokohama, Kanagawa 2238522, Japan
来源：
POLYMER GELS AND NETWORKS | 1998年 / 6卷 / 05期
关键词：
D O I：
10.1016/S0966-7822(98)00021-5
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Poly(N-isopropylacrylamide) (PNIPAM) microspheres prepared so far did not exhibit discontinuous change in their properties at the lower critical solution temperature of PNIPAM. In order to create novel microspheres which have sharp temperature-responsiveness, we prepared several kinds of microspheres which had different structures of the thermosensitive shell. Among them, the microspheres whose shell was composed of acrylic acid (AAc)-containing hairy PNIPAM met our requirement, that is, incorporation of only 0.02% AAc into hairy PNIPAM shell was found to enable the properties of microspheres such as hydrodynamic size and electrophoretic mobility to change discontinuously at the critical temperature. (C) 1999 Elsevier Science Ltd. All rights reserved.
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收藏
页码：319 / 332
页数：14
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