STEREOSPECIFIC POLYMERIZATION OF PROPYLENE-OXIDE ON THERMALLY ACTIVATED SYNTHETIC HYDROTALCITE

被引:32
作者
LAYCOCK, DE [1 ]
COLLACOTT, RJ [1 ]
SKELTON, DA [1 ]
TCHIR, MF [1 ]
机构
[1] UNIV WATERLOO,DEPT CHEM,WATERLOO N2L 3G1,ONTARIO,CANADA
关键词
D O I
10.1016/0021-9517(91)90119-O
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The stereodirecting influence of a thermally activated synthetic hydrotalcite material on the polymerization of propylene oxide has been demonstrated. Racemic propylene oxide can be polymerized to yield a crystalline, isotactic polymer fraction and a liquid, atactic fraction. (S)-(-)propylene oxide, under similar conditions, yields an optically active crystalline fraction and a liquid fraction of considerably reduced optical activity. Both liquid fractions exhibit a high degree of regioirregularity in the polymer chain. © 1991.
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页码:354 / 358
页数:5
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