N-ALKOXY PYRIDINIUM ION TERMINATED POLYTETRAHYDROFURANS - SYNTHESIS AND THEIR USE IN PHOTOINITIATED BLOCK COPOLYMERIZATION

被引：70

作者：

HIZAL, G ^{[1
]}

YAGCI, Y ^{[1
]}

SCHNABEL, W ^{[1
]}

机构：

[1] HAHN MEITNER INST BERLIN GMBH, D-14109 BERLIN, GERMANY

来源：

POLYMER | 1994年 / 35卷 / 20期

关键词：

LIVING CATIONIC POLYMERIZATION; TETRAHYDROFURAN; PYRIDINIUM IONS;

D O I：

10.1016/0032-3861(94)90105-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Living polytetrahydrofuran was terminated with pyridinium or isoquinolinium N-oxide to yield polymers with the corresponding end groups. Direct and sensitized irradiation of these photoactive polytetrahydro-furans produced alkoxyl radicals at both chain ends capable of initiating the radical polymerization of methyl methacrylate. In this way, triblock copolymers were formed. The block copolymer composition was determined with the aid of g.p.c. and optical and H-1 n.m.r. spectroscopy.

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页码：4443 / 4448

页数：6

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