Article
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS  (1996)

The temperature dependence of the peculiar behaviour of poly(N-vinyl-2-pyrrolidone) in water. Specific effect or conformational transition?

Gargallo, L.; Yazdani-Pedram, M; Radic D.

Keywords: temperature, water, polymers, transition, phase, transitions, liquids, measurement, viscosity, hydration, effects, compressibility, thermal, intrinsic, conformational, of, Polyvinyl, pyrrolidone

Abstract

Intrinsic viscosity [?], measurements in water at different temperatures were carried out for one fraction of poly(vinylpyrrolidone) (PVP). An anomalous behaviour of [?] at 30°C is observed. The shape of the plot of [?] vs T seems to indicate that PVP undergoes a peculiar change in water. Values of the partial specific compressibility (LC) for PVP at various temperatures are compared with the intrinsic viscosity results. This anomalous behaviour of [17], can be interpreted in terms of the different amount of hydration and the break of water structure with temperature obtained through the LC values for PVP as function of temperature.

Más información

Título de la Revista: INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
Volumen: 34
Número: 3-4
Editorial: TAYLOR & FRANCIS AS
Fecha de publicación: 1996
Página de inicio: 191
Página final: 195
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-0030382824&partnerID=q2rCbXpz