高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (7): 783.

• 研究简报 • 上一篇    下一篇

聚甲基丙烯酸2,2,3,3-四氟丙酯及其单体与甲基丙烯酸甲酯共聚物的合成与表征

李春荣, 李跃珠, 徐越平, 宋月贤, 朱端慧, 黄家贤   

  1. 南开大学化学系
  • 收稿日期:1988-10-17 出版日期:1990-07-24 发布日期:1990-07-24
  • 通讯作者: 李春荣

Synthesis and Characterization of Poly(2,2,3,3-Tetrafluoropropyl Methacrylate) and Its Copolymers with Methyl Methacrylate

Li Chunrong, Li Yaozhu, Xu Yueping, Song Yuexian, Zhu Duanhui, Huang Jiaxian   

  1. Department of Chemistry, Nankai University, Tianjin
  • Received:1988-10-17 Online:1990-07-24 Published:1990-07-24

摘要: 含氟甲基丙烯酸酯聚合物中的氟原子可使其折光指数nD很低。这是光导纤维皮材的首要条件[1]。这类材料的大分子主链与作为芯材使用的聚甲基丙烯酸甲酯(PMMA)具有相同的结构,因此其间的相容性和粘结性好,有利于光的全反射;其热稳定性也好[2,3],可用于共挤出法制造塑料光导纤维.

关键词: 聚甲基丙烯酸2, 2, 3, 3-四氟丙酯, 基团贡献, Mark-Houwink方程

Abstract: Homopolymers and copolymers of fluoroalkyl methacrylate are the important materials for plastic optical fiber. In this paper the method of the monomer synthesis and the homo- and the copoly-merization condition were reported. Polymers with high molecular weight are obtained by using this method. The theoretically calculated results of the refractive index of the polymers according to the theory of group contribution are in agreement with those of the practical measurements. The Mark-Houwink equations [η]THF25℃=3.54×10-3×M0.73, [η]Acetone25℃=2.34×10-3×M0.75 of the homopolymer are identified by measuring with light scattering and viscosity.

Key words: Poly(2,2,3,3-tetrafluoropropyl methacrylate, Group contribution, Mark-Houwink epua-tion

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