Syntheses of branched poly(ether ketone)s with pendant functional groups based on 1,1,1-tris(4-hydroxyphenyl)ethane

被引:20
作者
Fritsch, D
Vakhtangishvili, L
Kricheldorf, HR
机构
[1] Univ Hamburg, Inst Tech & Makromol Chem, D-20146 Hamburg, Germany
[2] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany
来源
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 2002年 / A39卷 / 11期
关键词
poly(ether ketone)s; polyelectrolytes; alkylation; 1,1,1-tris(4-hydroxyphenyl)ethane; cyclization;
D O I
10.1081/MA-120015734
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
1,1,1-Tris(4-hydroxyphenyl)ethane, THPE, was silylated with chlorotrimethylsilane and the silylated THPE was polycondensed with 1,4-bis(4-fluorobenzoyl)benzene, BFBB, in dry N-methylpyrrolidone. The resulting poly(ether ketone) had a moderate molecular weight and contained a significant fraction of cyclic oligomers and polymers. The pendant trimethylsiloxy group allowed an in situ alkylation with chloropropionitrile, allylbromide, 3,4-dichlorobenzyl chloride, 4-nitrobenzyl bromide, 1,3-propane sultone and 1,4-butane sultone. The latter alkylating agents yielded poly(either ketone)s having pendant sulfonic acid groups. Further functional groups were introduced by acylation of the pendant free OH-group (resulting from the hydrolysis of the Me3SiO group) with acetic anhydride, methacrylic anhydride, cinnamoyl chloride and undecenoyl chloride.
引用
收藏
页码:1335 / 1347
页数:13
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