首页   按字顺浏览 期刊浏览 卷期浏览 Conformation Isomerism In Poly(n-alkyl Laurolactams) By Proton And Carbon-13 NMR
Conformation Isomerism In Poly(n-alkyl Laurolactams) By Proton And Carbon-13 NMR

 

作者: S.W. Shalaby,   G.E. Babbitt,   R.L. Lapinski,  

 

期刊: Spectroscopy Letters  (Taylor Available online 1974)
卷期: Volume 7, issue 4-5  

页码: 203-210

 

ISSN:0038-7010

 

年代: 1974

 

DOI:10.1080/00387017408067237

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The amide groups of poly(N-methyl laurolactam), poly(N-ethyl laurolactam) and poly(N-benzyl laurolactam) were shown by PMR and CMR to acquire both theantiandsynconformations in CDCl3at 30°C. At 80°C, the PMR signals of the two conformations collapsed to one signal, at an intermediate chemical shift. Theanti - synPMR and/or CMR signals were displayed by carbon nuclei and protons of all the groups which are directly bonded to the amide moieties in the three polymers. The magnetic non-equivalence of the carbon nuclei and protons of a number of other groups which are not directly linked to the amide functions was also demonstrated.

 

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