高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (3): 484.

• 论文 • 上一篇    下一篇

α-氯乙酰氧基大分子引发剂的合成及其引发原子转移自由基聚合

刘兵1, 刘峰1, 罗宁1, 应圣康1, 刘青2   

  1. 1. 华东理工大学活性聚合研究室, 上海 200237;
    2. 中国北京燕山石化公司研究院, 北京 102549
  • 收稿日期:1999-04-20 出版日期:2000-03-24 发布日期:2000-03-24
  • 通讯作者: 应圣康(1928年出生),男,教授,博士生导师,主要从事高分子材料合成及聚合理论研究.
  • 基金资助:

    国家自然科学基金(批准号:29634010-2);上海教育发展基金(批准号:SG98007);北京燕山石化公司研究院资助

Synthesis of α- Chloroacetyl Oligomer as Macroinitiator for ATRP

LIU Bing1, LIU Feng1, LUO Ning1, YING Sheng-Kang1, LIU Qing2   

  1. 1. Lab.of Living Polymerization, East China Universityof Scienceand Technology, Shanghai 200237, China;
    2. Research Instituteof Beijing Yanshan Petroleum Chemical Corporation, Beijing 102549, China
  • Received:1999-04-20 Online:2000-03-24 Published:2000-03-24

摘要: 通过阴离子聚合制备了α-氯乙酰氧端基大分子引发剂,并用于引发(甲基)丙烯酸酯类单体进行“活性”/可控的原子转移自由基聚合(ATRP).结果表明:酰化反应温度为60℃、氯乙酰氯过量5倍和反应24h,酰化效率达到99.8%.产物经红外和核磁共振表征,证明α-氯乙酰氧端基的结构.用此引发剂引发乙烯基单体进行ATRP,合成了PSt-b-PMA和PSt-b-PBA嵌段共聚物,其结构通过1HNMR得到确证.

关键词: 阴离子聚合, 酰化, 原子转移自由基聚合(ATRP), 大分子引发剂

Abstract: Chloroacetyl polystyrene macroinitiator was synthesized by anionic polymerization. The optimum conditions for the synthesis of chloroacetyl oligomer are as follows: acylating temperature is 60 ℃, acylating time is 24 h and chloroacetyl chloride is excess 5 fold for n-butyl lithium. The structure of α chloroacetyl polystyrene macroinitiator was characterized by IRand 1H NMR. Block copolymer, such as PSt-b-PMA, PSt-B-PBA, was synthesized by ATRPwith α-chloroacetyl polystyrene oligomer as macroinitiator and the structure of PSt-b-PMAwas characterized by 1H NMR.

Key words: Anionic polymerization, Acylate, Atom transfer radical polymerization ATRP, Macroinitiator

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