COIL-GLOBULE TRANSITION OF POLYSTYRENE IN SOLUTION / VSHIVKOV SA,SAFRONOV AP // VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A \& SERIYA B. - 1995. - V. 37, l. 10. - P. 1779-1783.

ISSN/EISSN:

0507-5475 / нет данных

Type:

Article

Abstract:

Phase diagram of PS-cyclohexane system was examined using cloud point measurements, light scattering,calorimetry,and the ratio between the volumes of coexisting phases. It was found that the boundary curve determined calorimetrically at a scanning rate 10(-6) K/s coincides with the spinodal in the range of medium solution concentrations; for dilute solutions, the curve shows a horizontal portion at 303.86 K. In the range of medium solution concentrations, the right-hand branch of spinodal shows an inflection. The specific features of phase diagram ara due to the coil-globule conformational transition. The transition, which is observed at phi(2) < 5.5 x 10(-3), takes place both in the stable (above the binodal) and metastable (between the binodal and spinodal) regions and is, in fact, a first-order phase transition. The temperature at which the chains collapse is independent of the concentration of solution.

Author keywords:

PHASE-TRANSITION; COLLAPSE; CHAIN

DOI:

нет данных

Web of Science ID:

ISI:A1995TF08100029

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	MEZHDUNARODNAYA KNIGA
Address	39 DIMITROVA UL., 113095 MOSCOW, RUSSIA
Language	Russian
Keywords-Plus	PHASE-TRANSITION; COLLAPSE; CHAIN
Research-Areas	Polymer Science
Web-of-Science-Categories	Polymer Science
Number-of-Cited-References	30
Journal-ISO	Vysokomol. Soedin.
Doc-Delivery-Number	TF081