PREPARATION AND CHARACTERIZATION OF TELECHELIC POLY(METHYL METHACRYLATE) .2. ANIONIC-POLYMERIZATION WITH A DIFUNCTIONAL INITIATOR DERIVED FROM 4-[2-(TERT-BUTYLDIMETHYLSILOXY)ETHYL]-ALPHA-METHYLSTYRENE

被引：20

作者：

OHATA, M ^{[1
]}

IKEDA, S ^{[1
]}

AKATANI, S ^{[1
]}

ISONO, Y ^{[1
]}

机构：

[1] NIPPON PAINT CO LTD,RES CTR,NEYAGAWA,OSAKA 572,JAPAN

来源：

MACROMOLECULES | 1993年 / 26卷 / 21期

关键词：

D O I：

10.1021/ma00073a002

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel telechelic poly(methyl methacrylate) having OH and COOH groups in the chain was prepared by anionic polymerization with the difunctional initiator made by the reaction betweem 4-[2-(tert-butyldimethylsiloxy)ethyl]-alpha-methylstyrene and sodium napththalene, followed by termination with carbon dioxide and hydrolysis of the tert-butyldimethylsiloxy group. The resulting polymer was characterized by osmometry, GPC, H-1 NMR, and potentiometric titration. OH groups were introduced quantitatively, but the number of the terminal COOH groups per molecule was 1.7 +/- 0.1 which is less than the theoretical value, 2. The latter result was because part of the initiator was doubly charged and the rest had one charge plus a nonactive end, and/or the initiation efficiency in the reaction between the initiator and methyl methacrylate was low. The characterization assures that the multifunctionality of the polymer necessary for self-cross-linking is presented.

引用

页码：5539 / 5542

页数：4

共 16 条

[1]

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