| 甲基丙烯酸丁酯和苯乙烯的原子转移自由基共聚 |
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| 引用本文： | 邹友思,邱志平,庄荣传,林东海,戴李宗.甲基丙烯酸丁酯和苯乙烯的原子转移自由基共聚[J].高分子学报,1999(2):146-150. |
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| 作者姓名： | 邹友思 邱志平 庄荣传 林东海 戴李宗 |
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| 作者单位： | 厦门大学化学化工学院材料科学系,厦门,361005 |
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| 摘 要： | 研究了甲基丙烯酸丁酯（ＢＭＡ）和苯乙烯（Ｓ）这两种不同极性单体的原子转移自由基嵌段共聚和无规共聚，得到了实测分子量与理论分子量相近，分子量分布较窄的嵌段共聚物和无规共聚物．聚合过程中分子量和单体转化率成比例增加，多分散性指数变化不大．用１Ｈ ＮＭＲ法测定共聚组成，Ｋｅｌｅｎ Ｔｕｄｏｓ法计算竞聚率．得到ｒＳｔ＝０９１，ｒＢＭＡ＝０３２．
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| 关 键 词： | 原子转移自由基聚合，嵌段共聚，无规共聚 |
ATOM TRANSFER RADICAL COPOLYMERIZATION OF STYRENE AND BUTYL METHACRYLATE |
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| ZOU Yousi,QIU Zhiping,ZHUANG Rongchuan,LIN Donghai,DAI Lizong.ATOM TRANSFER RADICAL COPOLYMERIZATION OF STYRENE AND BUTYL METHACRYLATE[J].Acta Polymerica Sinica,1999(2):146-150. |
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| Authors: | ZOU Yousi QIU Zhiping ZHUANG Rongchuan LIN Donghai DAI Lizong |
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| Abstract: | This paper describes the application of atom transfer radical polymerization for the synthesis of controlled copolymer of styrene and butyl methacrylate by using 1 phenylethyl chloride (1 PECl),CuCl and bipyridine in a mole ratio of 1∶1∶2 at 130℃. The block copolymers of butyl methacrylate(BMA) and styrene(S) with predicted molecular weight (1×10 4～4×10 4) and narrower molecular weight distribution (1.1～1.5) were obtained.The random copolymer compositions were determined by 1H NMR spectroscopy and the reactivity ratios, γ St =0 91, γ BMA =0 32,were evaluated by the extended Kelen Tudos method.It was found that St is more reactive than BMA in atom transfer radical copolymerization. |
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| Keywords: | Atom transfer radical polymerization Block copolymerization Random copolymerization |
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