Cobalt-mediated radical polymerization (CMRP) of vinyl acetate initiated by redox systems:: Toward the scale-up of CMRP

被引：57

作者：

Bryaskova, Rayna ^{[1
]}

Detrembleur, Christophe ^{[1
]}

Debuigne, Antoine ^{[1
]}

Jerome, Robert ^{[1
]}

机构：

[1] Univ Liege, CERM, B-4000 Liege, Belgium

来源：

MACROMOLECULES | 2006年 / 39卷 / 24期

关键词：

D O I：

10.1021/ma060339r

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A redox initiating system was developed in order to bypass 2,2'-azobis(4-methoxy-2,4-dimethylvaleronitrile) (V70) as the initiator of the cobalt-mediated radical polymerization (CMRP) of vinyl acetate (VAc) in the presence of cobalt(II) acetylacetonate (Co(acac)(2)). It is indeed a problem to stock up with V70 because of needed storage at -20 degrees C during transportation. This paper reports on the controlled CMRP of VAc initiated by ascorbic acid combined with either lauroyl peroxide or benzoyl peroxide at 30 degrees C. Substitution of citric acid for ascorbic acid results in faster polymerization whereas the polymerization control is maintained. All these improvements facilitate the implementation of the vinyl acetate CMRP and open the door to the scale-up of the process.

引用

页码：8263 / 8268

页数：6

共 21 条

[1] Substituent effects in xanthate-mediated polymerization of vinyl acetate: Ab initio evidence for an alternative fragmentation pathway [J].