Synthesis of Well-Defined Telechelic Macrophotoinitiator of Polystyrene by Combination of ATRP and Click Chemistry

被引:33
作者
Degirmenci, Mustafa [1 ]
Genli, Nasrettin [1 ]
机构
[1] Harran Univ, Fac Sci, Dept Chem, TR-63190 Sanliurfa, Turkey
关键词
atom transfer radical polymerization (ATRP); block copolymer; click chemistry; photoinduced polymerization; telechelic macrophotoinitiator; END-FUNCTIONAL MACROPHOTOINITIATOR; HUISGEN 1,3-DIPOLAR CYCLOADDITION; TRANSFER RADICAL POLYMERIZATION; MIDCHAIN MACROPHOTOINITIATOR; POLYMERS; TETRAZOLES; AZIDES;
D O I
10.1002/macp.200900221
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 new well-defined telechelic macrophotoinitiator of polystyrene was synthesized by combination of ATRP and click chemistry. The ATRP of styrene by means of 2-oxo-1,2-diphenylethyl-2-bromopropanclate (PI-Br) initiator with CuBr/2,2'-bipyridine yields polystyrene with photoactive benzoin (PI) and bromine (Br) group (PI-PSt-Br). Subsequently, PI-PSt-Br was converted to PI-PSt-N-3 by simple nucleophilic substitution reaction. Alkyne functionalized benzoin (PI-alkyne) was synthesized by using benzoin photoinitiator and propargyl bromide. Then the coupling reaction between PI-PSt-N-3 and PI-alkyne was performed by Cu(I) catalysis. The spectroscopic studies revealed that low-polydispersity polystyrene with desired photoinitiator functionality at both end of the chain, PI-PSt-PI, was obtained.
引用
收藏
页码:1617 / 1623
页数:7
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