Synthesis and physical properties of tetramethylcyclobutanediol polycarbonates

被引：5

作者：

Acar, AE ^{[1
]}

Brunelle, DJ ^{[1
]}

机构：

[1] GE Co, Global Res, Niskayuna, NY 12309 USA

来源：

ADVANCES IN POLYCARBONATES | 2005年 / 898卷

关键词：

D O I：

10.1021/bk-2005-0898.ch016

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polycarbonates from 1,1,3,3-tetramethylcyclobutane-2,4-diol (TMCBD) have been prepared via transesterification reactions with diphenyl carbonate, and evaluated as UV-transparent, weatherable polymers. Melting and glass transition behavior was found to be related to trans content in the polymer. In melt transesterifications, the trans content decreased with long reaction time, due to a ring-opening decomposition reaction. However, high trans content could be maintained by preparing oligomers in the melt, followed by solid state polymerization to high molecular weight.

引用

页码：216 / 228

页数：13

共 8 条

[1]

BRUNELLE DJ, 1982, Patent No. 4217438

[2]

DALY WH, 1989, POLYM PREPR AM CHEM, V30, P337

[3] ALIPHATIC-AROMATIC COPOLYCARBONATES DERIVED FROM 2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIOL [J].