Block copolymers with bipyridine containing segments: Synthesis and self-organization by Cu(I) complexation
Block copolymers with bipyridine containing segments: Synthesis and self-organization by Cu(I) complexation
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含联吡啶链段的嵌段共聚物：通过 Cu(I) 络合的合成和自组织
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
U. Schubert
中科院分区：
文献类型：
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作者：
C. Eisenbach;A. Göldel;M. Terskan;U. Schubert
概述了含6，6‘-二取代2，2’-联吡啶(BPY)的嵌段共聚物B和聚氧四亚甲基软段A的嵌段ABA三嵌段和(AB)多嵌段共聚物的合成和性能。通过对传统合成路线的改进，实现了二取代联吡啶的大规模合成。在铜(1)离子存在下，这些聚合物在溶液中通过自组装形成单核[C~(I)(Bpy)~]络合物。络合共聚物是由聚醚基质中的铜-联吡啶络合物聚集体组成的具有纳米到介观超结构的微相分离体系。嵌段共聚物的热性能、力学性能和弹性体性能随组成的不同而不同。
SUMMARY The synthesis and properties of segmented ABA triblock and (AB), multiblock copolymer systems with 6,6‘-disubstituted 2,2’-bipyridine (bpy) building blocks B and poly(oxytetramethylene) soft segments A are described. The access to the disubstituted bipyridines in large scale quantities was achieved by modification of conventional synthetic routes. In the presence of copper(1) ions these polymers formed mononuclear [C~(I)(bpy)~] complexes in solution through self-assembly. The complexed copolymers were microphase separated systems in bulk with nano to mesoscopic superstructures consisting of copper-bpy complex aggregates in a polyether matrix. The thermal, mechanical and elastomer properties of the block copolymers varied with composition.