Hairy particles prepared by living radical graft-polymerization
Hairy particles prepared by living radical graft-polymerization
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DOI：
10.1002/1521-3900(200203)179:1
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发表时间：
2002-03
影响因子：
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通讯作者：
H. Kawaguchi;Y. Isono;Sakiko Tsuji
中科院分区：
文献类型：
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作者：
H. Kawaguchi;Y. Isono;Sakiko Tsuji
通过活性自由基接枝聚合制备了具有设计毛发的新型粒子。本研究中使用的活性自由基物种是一种光引发剂，N，N-二乙基硫代氨基甲酸酯。头发的主要成分是聚（N-异丙基丙烯酰胺）（PNIPAM），这是一种代表性的热敏聚合物。在低于PNIPAM转变温度的室温下通过UV照射进行聚合。将少量丙烯酸掺入毛发中引起毛状颗粒的性质的显著变化。共聚单体的电荷模式也使得能够在颗粒上设计毛发结构。
Novel particles having designed hairs were prepared by living radical graft-polymerization on core particles. The living radical species used in this study was a kind of photo-iniferter, N, N-diethyl-thiocarbamate. Main component of hair was poly(N-isopropylacrylamide) (PNIPAM) which was a representative thermo-sensitive polymer. The polymerization was carried out by UV irradiation at room temperature that was lower than the transition temperature of PNIPAM. Incorporation of a small amount of acrylic acid into the hair caused significant change in the properties of hairy particles. The mode of comonomer charge also enabled to design the hair structure on the particles.