波谱学杂志 ›› 1990, Vol. 7 ›› Issue (4): 439-444.

• 研究论文 • 上一篇    下一篇

取代基效应(SCS)与乙烯—α—烯烃共聚物的序列结构——Ⅰ.乙烯—丙烯共聚物

周子南, 李三喜, 田文晶, 庞德仁, 黄葆同   

  1. 中国科学院长春应用化学研究所高分子物理开放实验室, 吉林长春 130022
  • 收稿日期:1989-10-14 修回日期:1990-10-04 出版日期:1990-12-05 发布日期:2018-01-23

SUBSTITUENT CHEMICAL SHIFT (SCS) AND THE SEQUENCE STRUCTURE OF ETHYLENE-α-OLEFINE COPOLYMERS——Ⅰ. Ethylene-Propylene Copolymers

Zhou Zinan, Li Sanxi, Tian Wenjing, Pang Deren, Huang Baotong   

  1. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry Academia Sinica, Jilin, Changchun 130022, People's Republic of China
  • Received:1989-10-14 Revised:1990-10-04 Online:1990-12-05 Published:2018-01-23

摘要: 本文应用取代基效应方法处理乙丙共聚物的13C NMR谱,第一次得到这个共聚物(CH3)的取代基参数,在此基础上归属了乙丙共聚物的13C谱,讨论了共聚物序列结构的几种表示方法,进而用一套普适的公式计算了几个共聚物的序列分布,并作了比较。

关键词: 取代基效应方法, 13C NMR, 乙烯-丙烯共聚物, 序列结构

Abstract: In this paper, the 13C NMR chemical shift data of ethylenc-propylenc copolymer are treated according to a method of substituent chemical shift (SCS). The SCS parameters of EP copolymer (CH3) could be obtained in the first time. Based on it, 13C NMR spectrum of the copolymer is assignd and the signal rcpresentatin of sequence structure are discussed briefly. Then, the se-qucnce distribution of several copolymers could be calculated by using a set of universal formalu and compared with each other.

Key words: Substituent chemical shift (SCS) or Substituent effect, 13C NMR, Ethylene-propylene copolymers, Sequence structure