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Spectral assignment of poly(vinyl acetate) by one and two dimensional NMR spectroscopy: Revisited

✍ Scribed by Kaushik Dutta; Munia Mukherjee; A. S. Brar

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 180 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19990301)37:5<551::aid-pola5>3.0.co;2-r

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✦ Synopsis

Poly(vinyl acetate) (PVA) prepared by photopolymerization was studied by a combination of one and two dimensional NMR spectroscopy. The 13 C{ 1 H} and 1 H NMR spectra of the homopolymer (PVA) were assigned to the configurational pentads (CH region) and tetrads (CH 2 region). These assignments were substantiated by the use of two dimensional heteronuclear single quantum correlation (HSQC), heteronuclear single quantum correlation-total correlation spectroscopy (HSQC-TOCSY) and double quantum filtered correlation spectroscopy (DQFCOSY) experiments. The results obtained by the analysis of the area under the resonance signals confirmed that PVA obeys Bernoullian statistics.

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