| 八甲基环四硅氧烷阴离子乳液聚合反应的研究 |
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| 引用本文： | 穆森昌.八甲基环四硅氧烷阴离子乳液聚合反应的研究[J].高分子学报,1983,0(3):213-219. |
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| 作者姓名： | 穆森昌 |
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| 作者单位： | 中国科学院化学研究所 |
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| 摘 要： | 研究了八甲基环四硅氧烷(D_4)在十二烷基本磺酸(DBSA)及其钠盐(Na-DBSA)作用下的阴离子乳液聚合反应,讨论了温度、乳化剂和催化剂用量对反应速度及聚合物分子量的影响。认为该聚合反应包括D_4的水解开环、D_4和羟基硅氧烷的加成及羟基硅氧烷之间的缩合三类基本反应,乳液颗粒表面是主要反应区。
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| 收稿时间： | 1982-03-30 |
STUDIES OF ANIONIC EMULSION POLYMERIZATION OF OCTAMETHYLCYCLOTETRASILOXANE |
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| Mu Sen-chang.STUDIES OF ANIONIC EMULSION POLYMERIZATION OF OCTAMETHYLCYCLOTETRASILOXANE[J].Acta Polymerica Sinica,1983,0(3):213-219. |
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| Authors: | Mu Sen-chang |
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| Institution: | Institute of Chemistry; Academia Sinica |
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| Abstract: | The anionic emulsion polymerization of octamethylcyclo-tetrasiloxane (D4) has been studied in the presence of dodecylbenzensulfonic acid (DBSA) and its sodium salt. (Na-DBSA) The effects of temperature and amounts of emulsifeir and catylyst on the reaction-rate and M.W. of the polymer were discussed. It is assumed that the anionic emulsion polymerization contains three kinds of elementary reaction: the opening reaction of D4, the addition reaction of D4 to HO-ended siloxane and the condensation reaction between HO-ended siloxane and that the surface of emulsion particles in the main site of the reaction. |
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