活性自由基聚合反应合成苯乙烯与丙烯酸酯嵌段共聚物及相关共聚物

程广楼; 胡春圃; 应圣康

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活性自由基聚合反应合成苯乙烯与丙烯酸酯嵌段共聚物及相关共聚物

研究论文 | 更新时间：2021-03-19

- 活性自由基聚合反应合成苯乙烯与丙烯酸酯嵌段共聚物及相关共聚物
- SYNTHESIS AND CHARACTERIZATION OF P(St-b-MMA),P(St-b-BA) AND POLY(MA-co-IBVE) BY USING PHEN-ATRP SYSTEMS
- 高分子学报 2000年第2期页码：210-214
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- 纸质出版日期：2000-4-20，
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程广楼, 胡春圃, 应圣康. 活性自由基聚合反应合成苯乙烯与丙烯酸酯嵌段共聚物及相关共聚物[J]. 高分子学报, 2000,(2):210-214.

CHENG Guanglou, HU Chunpu, YING Shengkang. SYNTHESIS AND CHARACTERIZATION OF P(St-b-MMA),P(St-b-BA) AND POLY(MA-co-IBVE) BY USING PHEN-ATRP SYSTEMS[J]. Acta Polymerica Sinica, 2000,(2):210-214.
程广楼, 胡春圃, 应圣康. 活性自由基聚合反应合成苯乙烯与丙烯酸酯嵌段共聚物及相关共聚物[J]. 高分子学报, 2000,(2):210-214. DOI：

CHENG Guanglou, HU Chunpu, YING Shengkang. SYNTHESIS AND CHARACTERIZATION OF P(St-b-MMA),P(St-b-BA) AND POLY(MA-co-IBVE) BY USING PHEN-ATRP SYSTEMS[J]. Acta Polymerica Sinica, 2000,(2):210-214. DOI：

摘要

用Cu(phen)2Br/1-PEBr催化引发体系合成了分子量为5000左右的溴端基聚苯乙烯(PS-Br) .以后者为大分子引发剂

在Cu(phen)2Br存在下引发甲基丙烯酸甲酯 (MMA)或丙烯酸丁酯 (BA)聚合

合成了二嵌段共聚物PS-b-PMMA和PS-b-PBA

并通过GPC、IR、1H NMR及DSC等进行了表征 .实验发现

丙烯酸甲酯(MA)在Phen/CuCl/CCl4 催化引发下发生爆聚反应

仅当和异丁基乙烯基醚 (IBVE)才发生可控的自由基共聚合反应 .当MA和IBVE的投料摩尔比为 1∶1时

所得共聚物中两种单体链节的组成比为 1∶1 7左右 .

Abstract

A bromine capped polystyrene (PS-Br) with an Mn of around 5

000 was synthesized by using Cu(phen)2Br/1-PEBr as catalyst and initiator to polymerize styrene (St) according to atom transfer radical polymerization (ATRP) mechanism.Then

by using such a PS-Br as a macro-initiator

some block copolymers [P(St-b-MMA) and P(St-b-BA)] were also prepared through phen-ATRP.These block copolymers have been characterized by means of GPC

1H-NMR and DSC

respectively. It was found that there were no any homopolymers in these block copolymer systems and P(St-b-BA) exhibited a compatible system due to the short length of both blocks

although the miscibility between these two blcks was poor. By using phen/CuCl/RCl as catalyst and initiator

the explosive polymerization phenomenon of methacrylate (MA) was observed.However

the copolymerization of MA and iso-butyl vinyl ether (IBVE) could be controlled in ATRP.The obtained poly(MA-co-IBVE) was characterized and discussed by using DSC and 1H-NMR.

关键词

活性自由基共聚合反应苯乙烯甲基丙烯酸甲酯嵌段共聚物苯乙烯丙烯酸丁酯嵌段共聚物丙烯酸甲酯异丁基乙烯基醚共聚物

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