Hyperbranched Polymers by Visible Light Induced Self-Condensing Vinyl Polymerization and Their Modifications

被引：65
作者：
Bektas, Semiha [1 ]
Ciftci, Mustafa [1 ]
Yagci, Yusuf [1 ,2 ,3 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey
[2] King Abdulaziz Univ, Fac Sci, CEAMR, Jeddah 21589, Saudi Arabia
[3] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21589, Saudi Arabia
来源：
MACROMOLECULES | 2013年 / 46卷 / 17期
关键词：
CONTROLLED/LIVING RADICAL COPOLYMERIZATION; CLICK CHEMISTRY; CATIONIC-POLYMERIZATION; BLOCK-COPOLYMERS; METHYL ACRYLATE; TELECHELIC POLYMERS; POLYETHER-POLYOLS; STAR POLYMERS; CHAIN; MACROMOLECULES;
D O I：
10.1021/ma401534w
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Visible light induced self-condensing vinyl polymerization is explored using 2-bromoethyl methacrylate (2-BEMA) and methyl methacrylate (MMA) as inimer and comonomer, respectively, in the presence of dimanganese decacarbonyl (Mn-2(CO)(10)) for the preparation of hyper-branched polymers. Upon photoexcitation in the visible range, Mn-2(CO)(10) undergoes irreversible decomposition leading to the formation of initiating radicals through bromine abstraction from 2-BEMA. Depending on the concentrations of 2-BEMA and Mn-2(CO)(10) and irradiation time, hyperbranched polymers with different branching density and cross-linked polymers were formed. The resulting polymers possess unreacted bromide groups in the structure which allow postfunctionalization through visible light photopolymerization and Cu(I)-catalyzed click reactions.
引用
收藏
页码：6751 / 6757
页数：7
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