Facile preparation of supramolecular (ABAC)n multiblock copolymers from Hamilton wedge and barbiturate-functionalized RAFT agents

Facile preparation of supramolecular (ABAC)n multiblock copolymers from Hamilton wedge and barbiturate-functionalized RAFT agents
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用 Hamilton 楔和巴比妥酸盐官能化 RAFT 试剂轻松制备超分子 (ABAC)n 多嵌段共聚物

DOI:
10.1039/c3py01482g
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发表时间:
2014
期刊:
影响因子:
4.6
通讯作者:
Binder
Binder
中科院分区:
化学2区
文献类型:
--
作者:
Barqawi;Schulz;Binder

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两种原始的汉密尔顿楔形(HW)/巴比妥酸盐(Ba)官能化对称三硫代碳酸酯已成功合成,并研究了它们有效介导苯乙烯、nBuA和异戊二烯聚合的能力。依靠识别对的超分子缔合,遥爪大分子结构单元随后形成新型超分子(ABAC)n多嵌段共聚物,其中A处于玻璃态,B和C处于橡胶态。 1H NMR、ITC、粘度测定、DLS 以及 DSC 证明了所需超分子结构的成功生成。
Two original Hamilton wedge (HW)/barbiturate (Ba) functionalized symmetrical trithiocarbonates have been successfully synthesized and their capability to efficiently mediate the polymerization of styrene, nBuA and isoprene was investigated. Relying on supramolecular association of the recognition couple, telechelic macromolecular building blocks subsequently afford the formation of novel supramolecular (ABAC)n multiblock copolymers, where A is in a glassy state, B and C in a rubbery state. The successful generation of the desired supramolecular structure was evidenced by 1H NMR, ITC, viscometry, and DLS as well as DSC.
通过金属配位的超分子交替嵌段共聚物。
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