高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 318.

• 研究论文 • 上一篇    下一篇

稳定自由基存在下苯乙烯聚合的加速剂

林建, 李万利, 颜明发, 庄荣传, 邹友思   

  1. 厦门大学材料科学系, 固体表面物理化学国家重点实验室, 厦门 361005
  • 收稿日期:2001-03-13 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 邹友思(1954年出生),男,教授,主要从事活性自由基聚合研究.E-mail:yszou@jingxian.xmu.edu.cn E-mail:yszou@jingxian.xmu.edu.cn
  • 基金资助:

    固体表面物理化学国家重点实验室基金(批准号:1130)资助

Some New Rate-accelerating Additives for Nitroxide-mediated Living Free Radical Polymerization of Styrene

LIN Jian, LI Wan-Li, YAN Ming-Fa, ZHUANG Rong-Chuan, ZOU You-Si    

  1. Department of Material Science and State Key Laboratory for Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, China
  • Received:2001-03-13 Online:2002-02-24 Published:2002-02-24

PDF (PC)

摘要： 研究了稳定自由基存在下苯乙烯的活性聚合.发现在β-酮酸酯[乙酰乙酸乙酯(AAE),乙二酸二乙酯(DEM)],1,3-二酮[乙酰丙酮(AAT)]及强酸酐[三氟乙酸酐(TFA)]的少量存在下,苯乙烯聚合速率显著增加,分子量可控,分子量分布较窄.而有机强酸[氯乙酸(CAA),溴乙酸(BAA),2,4,6-三硝基苯酚(TNP)]并不提高聚合速率.

关键词: 稳定自由基, 活性自由基聚合, 加速剂

Abstract: Living free radical polymerizations of styrene were studied with the initiator of benzoyl peroxide in the presence of TEMPO(2,2,6,6-tetramethylpiperidinyl-1-oxy). The purpose of this paper is to explore the polymerization rate enhancement by means of using additives. It was found that styrene polymerization was distinctly accelerated by the addition of small amounts of a 1,3-diketone(acetylacetone, AAT) , a β-keto ester(acetoacetic ester, AAE) or diethyl malonate(DEM) and a strong organic anhydride(trifluoroacetic acid anhydride, TFA). However, some of strong organic acid, chloroacetic acid(CAA), bromoacetic acid(BAA) and 2,4,6-trinitrophenol(TNP) did not enhance the rate of the stable free radical mediated polymerization.

Key words: Stable free radical, Living free radical polymerization, Rate-accelerating additive

中图分类号: 

TrendMD: