A spectroscopic study of the solvation of 1-vinyl-2-pyrrolidone and poly(1-vinyl-2-pyrrolidone) in different solvents

Citation
I. Szaraz et W. Forsling, A spectroscopic study of the solvation of 1-vinyl-2-pyrrolidone and poly(1-vinyl-2-pyrrolidone) in different solvents, POLYMER, 41(13), 2000, pp. 4831-4839
Citations number
7
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER
ISSN journal
00323861 → ACNP
Volume
41
Issue
13
Year of publication
2000
Pages
4831 - 4839
Database
ISI
SICI code
0032-3861(200006)41:13<4831:ASSOTS>2.0.ZU;2-8
Abstract
The solvation of 1-vinyl-2-pyrrolidone and poly(1-vinyl-2-pyrrolidone) in s olvents of varying polarity, specifically water, ethylene glycol, chlorofor m and carbon tetrachloride, was investigated by means of Fourier transform infrared (FT-IR), FT-Raman, UV, H-1 and C-13 NMR spectroscopy. The IR and R aman measurements made it possible to establish the structures of the solva ted molecules and the type of the hydrogen bonding that was obtained. From the UV results, the strength of the vinyl double bond was estimated in the different solvents. The H-1 and C-13 NMR spectra indicated that polar solve nts interact with the solutes at the carbonyl group of the pyrrolidone ring , whereas nonpolar solvents interact mainly with the vinyl group in the 1-v inyl-2-pyrrolidone and with the polymer chain in poly(1-vinyl-2-pyrrolidone ). (C) 2000 Elsevier Science Ltd. All rights reserved.