化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (5) : 166-169.

科学研究

可逆加成-断裂链转移聚合-细乳液聚合法合成聚异戊二烯-b-聚苯乙烯-b-聚甲基丙烯酸甲酯三嵌段共聚物

崔野, 崔海清, 刘福瑞, 雷良才, 李海英

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Synthesis of PIP-b-PS-b-PMMA triblock copolym-er by RAFT-microemulsion polymerization

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Received		Published
2017-01-16		2018-05-20
Issue Date	Revised Date
2018-07-03	2017-01-16

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摘要

在水分散的细乳液体系中,以S-正十二烷基-S′-(α,α′-二甲基-α″-乙酸基)三硫代碳酸酯为链转移剂、偶氮二氰基戊酸为引发剂,采用连续加料的方式,依次引发异戊二烯、苯乙烯和甲基丙烯酸甲酯等单体聚合,制备了结构明确的聚异戊二烯-b-聚苯乙烯-b-聚甲基丙烯酸甲酯三嵌段共聚物。采用凝胶渗透色谱、核磁氢谱和差示量热等方法对嵌段聚合物进行了表征。

Abstract

In aqueous dispersion/microemulsion system,with S-1-dodecyl-S′-(α,α′-dimethyl-α″-aceticacid) trithiocarbonate as chain transfer agent,4,4′-azobis(4-cyanopentanoic acid) as the initiator,triblock copolymer polyisoprene-b-polystyrene-b-poly(methyl methacrylate) was synthesized by RAFT-microemulsion polymerization.Where monomers such as,isoprene,styrene and methyl methacrylate were added and initiated successively.The structure of PIP-b-PS-b-PMMA was confirmed by GPC,¹H-NMR and DSC.

关键词

可逆加成-断裂链转移聚合 / 乳液聚合 / 三嵌段聚合物 / 异戊二烯

Key words

RAFT / microemulsion polymerization / triblock copolymer / isoprene

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崔野, 崔海清, 刘福瑞, 雷良才, 李海英. 可逆加成-断裂链转移聚合-细乳液聚合法合成聚异戊二烯-b-聚苯乙烯-b-聚甲基丙烯酸甲酯三嵌段共聚物[J]. 化工新型材料, 2018, 46(5): 166-169 DOI:

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