キハラ ノブヒロ   Kihara Nobuhiro
  木原 伸浩
   所属   神奈川大学  理学部 化学科
   職種   教授
言語種別 英語
発行・発表の年月 1997/06
形態種別 学術雑誌
査読 査読あり
標題 Synthesis and Properties of Microgel Bearing Mercapto Group
執筆形態 共著
掲載誌名 J. Polym. Sci., Part A: Polym. Chem.
巻・号・頁 35(8),pp.1443-1451
著者・共著者 Nobuhiro Kihara, Chikara Kanno, and Takashi Fukutomi
概要 Vinylbenzyl S-thioacetate (I) was prepd. Soln. polymn. in chlorobenzene afforded a corresponding sol. polymer. Bulk copolymn. of I with styrene afforded a sol. copolymer when the feed ratio of I was lower than 30 mol %. Soap-free emulsion copolymn. of I, styrene, divinylbenzene, and 2-hydroxyethyl methacrylate (66:28:1:5) was carried out to afford uniform spherical microgel, whose av. diam. was 135 nm. Aminolysis of the microgel with an excess amt. of butylamine in the presence of sodium tetrahydridoborate followed by treatment with hydrochloric acid resulted in complete removal of the acetyl group to give a slightly distorted spherical microgel (MG-SH) bearing mercapto groups. The av. diam. of MG-SH was 165 nm. Transesterification of p-nitrophenyl acetate in the presence of triethylamine was efficiently accelerated by the addn. of MG-SH. The radical polymn. of Me methacrylate (MMA) in the presence of MG-SH afforded the MMA-grafted microgel.
DOI 10.1002/(SICI)1099-0518(199706)35:8<1443::AID-POLA13>3.0.CO;2-7
ISSN 0887-624X