Visible light-induced photo-radical ring-opening copolymerization of thionolactone and acrylates

被引：4

作者：

Jazani, Arman Moini ^{[1
]}

Bernat, Roksana ^{[1
,2
]}

Matyjaszewski, Krzysztof ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Chem, 4400 Fifth Ave, Pittsburgh, PA 15213 USA

[2] Univ Silesia, Inst Mat Engn, 75 Pulku Piechoty 1A, PL-41500 Chorzow, Poland

来源：

POLYMER | 2024年 / 302卷

关键词：

CATALYZED AEROBIC DESULFURIZATION; DEGRADABLE VINYL-POLYMERS; RAFT POLYMERIZATION; THIOAMIDES; MONOMERS; ROUTE;

D O I：

10.1016/j.polymer.2024.127032

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Radical ring-opening (co)polymerization (RROP) provides an accessible method for synthesizing main chain degradable vinyl polymers. Although the applications of reversible deactivation radical polymerization (RDRP) into RROP have been reported, the use of photo-mediated RDRP methods has received less attention than the thermal process. Here, photo-RROP of the thionolactone dibenzo [c,e]-oxepine-5(7H)-thione (DOT) and methyl acrylate (MA) was studied using photo-iniferter (PI) reversible addition-fragmentation (chain) transfer (RAFT) polymerization at ambient temperature without external radical initiators or photocatalysts. Despite the occurrence of some side reactions including desulfurization-oxygenation and O-S isomerization of DOT promoted by photoexcited thiocarbonyl groups, polymers with thioester linkages in the backbone were prepared, which degraded in the presence of amines and bleach.

引用

页数：7

共 72 条

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