中华医学超声杂志

应用化学 ›› 1984, Vol. 0 ›› Issue (3): 63-67.

• 研究论文 • 上一篇    下一篇

丁二烯与甲基丙烯酸甲酯交替共聚物及其嵌段聚合物的13C-NMR研究

张喜田, 韩孝族   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1984-01-13 修回日期:1984-03-28 出版日期:1984-09-10 发布日期:1984-09-10

STUDY ON THE 13C-NMR SPECTRA OF ALTERNATING COPOLYMER OF BUTADIENE-METHYL METHACRYLATE AND ITS BLOCK POLYMER

Zhang Xitian, Han Xiaozu   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1984-01-13 Revised:1984-03-28 Published:1984-09-10 Online:1984-09-10

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摘要： 本文研究了丁二烯(BD)与甲基丙烯酸甲酯(MMA)交替共聚物的13C-NMR谱,结果表明,交替度达99.2%。其中,反式1,4-,顺式1,4-和1,2-BD分别约占97.6%,1.3%和1.1%。对交替共聚物的嵌段聚合物Poly[(ST-a-MA)-b-(BD-a-MMA)-b-(ST-a-MA)]的13C-NMR谱研究,证明其为嵌段结构,每一段都是交替共聚物。

Abstract: The 13C-NMR spectrum of the alternating copolymer of butadiene (BD) with methyl methacrylate (MMA) has been studied. The results indicate that the degree of alternation approches to 99.2% and the contents of trans-1,4-,cis-1, 4-and 1, 2-BD in the alternating structure units are 97.6%, 1.3% and 1.1%, respectively. It has also been proved by the 13C-NMR spectra that every block of the block polymer, poly[(ST-a-MA)-b-(BD-a-MMA)-b-(ST-a-MA)] has alternating structure as well.

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