Preparation and characterisation of branched poly (styrene-co-acrylonitrile) via atom transfer radical polymerisation using beta-bromoethyl benzene as initiator

Huang W.; Xue X.; Chen J.; Fang J.; Zhang D.; Yang H.; Jiang B.; Kong L.; Pu H.

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Preparation and characterisation of branched poly (styrene-co-acrylonitrile) via atom transfer radical polymerisation using beta-bromoethyl benzene as initiator

机译：以β-溴乙基苯为引发剂的原子转移自由基聚合制备支化聚苯乙烯-丙烯腈

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Branched poly (styrene-co-acrylonitrile) was prepared by atom transfer radical polymerisation (ATRP) of styrene (St) and acrylonitrile (AN) with the feed composition of 0.5 using beta-bromoethyl benzene (BEB) as the initiator and divinylbenzene (DVB) as the branching agent. The polymerisation kinetics and the development of branching were studied by gas chromatography (GC), triple detection size exclusion chromatography (TD-SEC) and proton nuclear magnetic resonance (H-1-NMR) spectroscopy. The primary chains with the pendent vinyl groups were formed dominantly at a monomer conversion of less than 50%. The pendent vinyl group participated in the polymerisation, which resulted in the formation of branching structure accompanied by a rapid increase in molecular weight and a broadening in its distribution. The branching chains developed gradually as the molecular weight increased. The copolymers of higher molecular weights had higher branching degree than those of lower molecular weights.

机译：使用β-溴乙基苯（BEB）作为引发剂和二乙烯基苯（DVB），通过进料组成为0.5的苯乙烯（St）和丙烯腈（AN）的原子转移自由基聚合（ATRP）制备支化的聚（苯乙烯-共-丙烯腈））作为支化剂。通过气相色谱（GC），三重检测尺寸排阻色谱（TD-SEC）和质子核磁共振（H-1-NMR）光谱研究了聚合动力学和支化的发展。具有悬垂的乙烯基的主链主要以小于50％的单体转化率形成。悬垂的乙烯基团参与聚合，这导致形成支链结构，伴随着分子量的快速增加和其分布的扩大。随着分子量的增加，支链逐渐发展。高分子量的共聚物比低分子量的共聚物具有更高的支化度。

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来源
《Materials Research Innovations》 |2014年第3期|214-219|共6页
作者
Huang W.; Xue X.; Chen J.; Fang J.; Zhang D.; Yang H.; Jiang B.; Kong L.; Pu H.;
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作者单位

Tongji Univ, Inst Funct Polymer, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China|Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China;

Tongji Univ, Inst Funct Polymer, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
Branched copolymer; Atom transfer radical polymerisation; beta-Bromoethyl benzene; Divinylbenzene; Styrene; Acrylonitrile;

机译：支化共聚物;原子转移自由基聚合;β-溴乙基苯;二乙烯基苯;苯乙烯;丙烯腈;

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机译：活性/可控自由基聚合。在常规自由基引发剂存在下的过渡金属催化的原子转移自由基聚合

Preparation and characterisation of branched poly (styrene-co-acrylonitrile) via atom transfer radical polymerisation using beta-bromoethyl benzene as initiator

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