中华医学超声杂志

应用化学 ›› 1992, Vol. 0 ›› Issue (6): 46-51.

• 研究论文 • 上一篇    下一篇

聚甲基丙烯酸正十八酯的立构规整性及其序列研究

石明孝, 林贤福   

  1. 浙江大学分析测试中心, 杭州 310027
  • 收稿日期:1992-01-04 修回日期:1992-05-20 出版日期:1992-12-10 发布日期:1992-12-10

STUDY ON THE SEQUENCE DISTRIBUTION OF POLY(OCTADECYL METHACRYLATE) STEREOREGULARITY

Shi Minxiao, Lin Xianfu   

  1. Instrument Analysis and Research Center, Zhejiang University, Hangzhou 310027
  • Received:1992-01-04 Revised:1992-05-20 Published:1992-12-10 Online:1992-12-10

PDF

398

被引次数

3

摘要： 合成了聚甲基丙烯酸正十八酯的梳状聚合物,分别用13C NMR谱和FTIR分峰技术研究了立构规整性及其数均序列长度。聚合过程服从于Bernoullian统计规律,属自由基聚合。

关键词: 聚四基丙烯酸正十八酯, 立构规整性, 13C NMR谱, FTIR光谱

Abstract: Poly(octadecyl methacrylate)(P(n-OMA)) was synthesized. The sequence distribution of its stereoregularity has been studied 13C NMR spectra of by carbonyl, methyl and quaternary carbons. The contents of various stereosequences were determined and the rusults were in agreement with that obtained from FTIR spectra.The number average sequence lengths were determined in terms of 13C NMR spectra of triad sequence. The results suggest that the polymerization of alkyl methacylate is characterized by Bernoullian statistics.

Key words: polyoctadecyl mehtacrylate, stereoregularity, 13C NMR spectrum, FTIR spectrum

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