Well-Defined Polymers Bearing Pendent Alkene Functionalities via Selective RAFT Polymerization.
Well-Defined Polymers Bearing Pendent Alkene Functionalities via Selective RAFT Polymerization.
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DOI：
10.1021/ma802057u
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发表时间：
2008-12-09
期刊：
影响因子：
5.5
通讯作者：
Wooley, Karen L.
中科院分区：
文献类型：
--
作者：
Ma, Jun;Cheng, Chong;Sun, Guorong;Wooley, Karen L.
采用选择性可逆加成-裂解链转移（RAFT） （co）聚合技术，建立了一种制备性能良好的含悬链烯烃官能团聚合物的简便合成方法。合成了含苯乙烯基和烯烃基的二乙烯基单体4-（3′-丁烯-1′-氧）-2,3,5,6-四氟苯乙烯(1)。由于苯乙烯基相对于1中的烯烃基团具有非常高的反应活性，因此通过1的RAFT聚合和1与五氟苯乙烯（PFS）的共聚制备了结构明确且链上烯烃基团的功能氟（co）聚合物。以聚苯乙烯-马来酸酐大链转移剂为原料，用RAFT法将1与PFS或苯乙烯共聚制备烯烃功能化二嵌段共聚物。这些共聚物的水解和氨解产生具有烯烃功能化疏水段的两亲性二嵌段氟共聚物，其在四氢呋喃水中形成内功能化胶束。
A facile synthetic approach for the preparation of well-defined (co)polymers bearing pendent alkene functionalities was established by selective reversible addition-fragmentation chain transfer (RAFT) (co)polymerization. A divinyl monomer 4-(3′-buten-1′-oxy)-2,3,5,6-tetrafluorostyrene (1) with a styrenyl group and a pendent alkene group was synthesized. Due to a very high reactivity of the styrenyl group relative to the alkene group in 1, functional fluoro(co)polymers with both well-defined structures and pendent alkene groups were prepared by RAFT polymerizations of 1 and copolymerization of 1 with pentafluorostyrene (PFS). Alkene-functionalized diblock copolymers were also prepared by RAFT copolymerization of 1 with PFS or styrene, extending from a poly(styrene-alt-maleic anhydride) macro-chain transfer agent. Hydrolysis and ammonolysis of these copolymers resulted in amphiphilic diblock fluorocopolymers with alkene-functionalized hydrophobic segments, which were shown to form internally-functionalized micelles in THF-water.
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影响因子：
5.5
作者：
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通讯作者：
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通讯作者：
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作者：
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