Single electron transfer-degenerative chain transfer mediated living radical polymerization (SET-DTLRP) of vinyl chloride initiated with methylene iodide and catalyzed by sodium dithionite

被引：38

作者：

Percec, V ^{[1
]}

Popov, AV ^{[1
]}

Ramirez-Castillo, E ^{[1
]}

Coelho, JFJ ^{[1
]}

机构：

[1] Univ Penn, Dept Chem, Roy & Diana Vagelos Labs, Philadelphia, PA 19104 USA

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2005年 / 43卷 / 04期

关键词：

living polymerization; radical polymerization; vinyl chloride; poly(vinyl chloride); sodium dithionite; methylene iodide; single electron transfer; degenerative chain transfer; telechelic;

D O I：

10.1002/pola.20543

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Single electron transfer-degenerative chain transfer mediated living radical polymerization (SET-DTLRP) of vinyl chloride (VC) initiated with methylene iodide (CH2I2) and catalyzed by sodium dithionite (Na2S2O4) in water at 35 degreesC produces a telechelic poly(vinyl chloride) (UP-PVC) with two different active chain ends: ICH2(CH2CHCl)(n-1)CH2CHClI, and 2.0 functionality. The reactivity and initiator efficiency of CH2I2 in SET-DTLRP of VC was lower than those of iodoform. A possible mechanism for the CH2I2-initiated SET-DTLRP of VC was suggested. (C) 2005 Wiley Periodicals, Inc.

引用

页码：773 / 778

页数：6

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