Epoxy-functionalised 4-vinylguaiacol for the synthesis of bio-based, degradable star polymers via a RAFT/ROCOP strategy
Epoxy-functionalised 4-vinylguaiacol for the synthesis of bio-based, degradable star polymers via a RAFT/ROCOP strategy
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DOI：
10.1039/d0py00878h
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发表时间：
2020-09-28
影响因子：
4.6
通讯作者：
Kamigaito, Masami
中科院分区：
文献类型：
--
作者：
McGuire, Thomas M.;Miyajima, Masato;Kamigaito, Masami
天然存在的乙烯基酚化合物 4-乙烯基愈创木酚 (4VGEP) 的环氧衍生物用于合成明确的 (M-w/M-n= 1.08-1.14) 生物基苯乙烯型聚合物。还制备了 4VGEP 与苯乙烯和二乙基丙烯酰胺的嵌段共聚物，并将其用作金属中的大分子单体，并与顺式-4-环己烯-1,2-二甲酸酐进行无金属开环共聚（ROCOP），以高产率（82-90%）形成酯交联星形聚合物，具有窄分散性（M-w/M-n = 1.27-1.40）。最后，在酸性条件下实现了苯乙烯基星形酯核的选择性降解。
An epoxy derivative of a naturally occuring vinylphenolic compound, 4-vinylguaiacol (4VGEP), was used for the synthesis of a well-defined (M-w/M-n= 1.08-1.14), bio-based styrene-type polymer. Block copolymers of 4VGEP with styrene and diethylacrylamide were also prepared and used as macro-monomers in metal, and metal-free, ring-opening copolymerisation (ROCOP) withcis-4-cyclohexene-1,2-dicarboxylic anhydride to form ester cross-linked star polymers in high yields (82-90%), with narrow dispersity (M-w/M-n= 1.27-1.40). Finally, the selective degradation of the ester core of the styrene-based star was achieved under acidic conditions.