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キハラ ノブヒロ
Kihara Nobuhiro 木原 伸浩 所属 神奈川大学 理学部 理学科 神奈川大学大学院 理学研究科 理学専攻(化学領域) 職種 教授 |
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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 |