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 1998/08
形態種別 学術雑誌
査読 査読あり
標題 Reaction of Methyl Thioglycolate with Chloromethylstyrene Microgel: Preparation of Core-Shell Type Microgel by Chemical Modification
執筆形態 共著
掲載誌名 J. Appl. Polym. Sci.
巻・号・頁 69(9),pp.1863-1873
著者・共著者 Nobuhiro Kihara, Yukihiro Adachi, Kimitaka Nakao, and Takashi Fukutomi
概要 A uniform spherical poly(chloromethylstyrene) (PCMS) microgel whose av. diam. was 2.3 μm was prepd. by dispersion copolymn. of chloromethylstyrene and divinylbenzene in the presence of poly(vinylpyrrolidinone). When the PCMS microgel was treated with an excess amt. of Me thioglycolate (MTG) in the presence of DBU, sulfenylated microgel was obtained. The introduction ratio of MTG corresponded well to the amt. of DBU used. A transmission electron microscope (TEM) photograph and thermal anal. of the PCMS microgel partially modified by MTG showed that it had a core-shell structure, i.e., an MTG-modified shell and an unchanged core. The PCMS microgel in which 52% of the MTG was introduced was treated with an excess amt. of pyridine in DMAc at 50°C for 48 h followed by acid-catalyzed hydrolysis in dioxane-water at 80°C for 48 h to give a zwitterionic microgel that formed a stable suspension.
DOI 10.1002/(SICI)1097-4628(19980829)69:9<1863::AID-APP22>3.0.CO;2-L
ISSN 0021-8995