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Raman spectroscopic study of hydrogen bonding of poly( N ‐vinyl‐2‐pyrrolidone) in heavy water and dimethyl sulfoxide
Author(s) -
Tanaka Naoki,
Ito Kensaku,
Kitano Hiromi
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021951008
Subject(s) - 2 pyrrolidone , dimethyl sulfoxide , monomer , raman spectroscopy , polymer chemistry , hydrogen bond , chemistry , molecule , sulfoxide , polymer , organic chemistry , physics , optics
The Raman spectra of solutions of poly( N ‐vinyl‐2‐pyrrolidone) (PVP; M̄ w = 1 000, 10 000, 40 000 and 360 000) in D 2 O and dimethyl sulfoxide (DMSO) were measured at various concentrations. PVP is hydrated by D 2 O in a manner different from N ‐ethyl‐2‐pyrrolidone (NEP) and N ‐methyl‐2‐pyrrolidone (NMP), monomer analogues of PVP. The self‐association of DMSO molecules in the solution of PVP was found to be different from that in the solution of NMP by using difference spectroscopy. These phenomena were attributed to a net‐like structure of concentrated solutions of PVP.