SYNTHESIS AND C-13-NMR STUDIES OF POLYSTYRENES OF CONTROLLED MOLECULAR-WEIGHTS

被引：5

作者：

BAHULEKAR, R ^{[1
]}

GHADAGE, RS ^{[1
]}

PONRATHNAM, S ^{[1
]}

AYYANGAR, NR ^{[1
]}

机构：

[1] NATL CHEM LAB,POONA 411008,MAHARASHTRA,INDIA

来源：

EUROPEAN POLYMER JOURNAL | 1990年 / 26卷 / 07期

关键词：

D O I：

10.1016/0014-3057(90)90121-J

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polystyrene samples of various number-average molecular weights were synthesized by regulated suspension polymerizations taken to very high conversions. The chain transfer constant of the regulator, carbon tetrachloride, for this benzoyl peroxide initiated polymerization at 70° was found to be 1.10 × 10-3. It was found to regulate chain length up to very high conversions. The polymers were characterized by 13C-NMR and GPC. The dyad, triad, tetrad and pentad distributions were estimated. The polymers were formed to be atactic. © 1990.

引用

页码：721 / 725

页数：5

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