Phase equilibrium in blends of crystalline poly(ethylene oxide) amorphous poly(methyl acrylate) or poly(methyl methacrylate) / Suvorova AI,Hassanova AH,Tujkova IS // POLYMER INTERNATIONAL. - 2000. - V. 49, l. 9. - P. 1014-1016.

ISSN/EISSN:

0959-8103 / нет данных

Type:

Article; Proceedings Paper

Abstract:

Phase separation in blends of crystalline poly(ethylene oxide) (PEO) and amorphous poly(methyl methacrylate) (PMMA) or poly(methyl acrylate) (PIMA) has been examined using DTA, small-angle light scattering, and polarized microscopy. The structure of the polymer blends was analysed by the wide-angle X-ray diffraction technique. It is found that phase separation takes place in both systems above the melting point (T-m) of the crystalline component. PEO/PMMA blends have an upper critical solution temperature above the glass transition temperature and T-m of the system. Components of PEO/PMMA blends are compatible in two regions: when the PMA concentration is 0.0-0.5 weight fraction or exceeds 0.8 weight fraction. PEO and Ph LA are immiscible in the melt at intermediate concentrations. It is shown that compatibility of components in the melt of crystalline and amorphous polymers is not a universal property of polymer blends. (C) 2000 Society of Chemical Industry.

Author keywords:

poly(ethylene oxide); poly(methylmethacrylate); poly(methylacrylate); phase diagram; melting point; cloud point; phase separation CORRESPONDING-STATES THEORY; POLYMER BLENDS; MISCIBILITY; PREDICTION; THERMODYNAMICS; COMPATIBILITY; NMR

DOI:

10.1002/1097-0126(200009)49:9<

Web of Science ID:

ISI:000088986200019

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Note	Macromolecules 99: Polymers in the New Millennium Conference, UNIV BATH, BATH, ENGLAND, SEP 05-09, 1999
Organization	MacroGrpUK; ACS, Polymer Div
Publisher	JOHN WILEY \& SONS LTD
Address	BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND
Language	English
Keywords-Plus	CORRESPONDING-STATES THEORY; POLYMER BLENDS; MISCIBILITY; PREDICTION; THERMODYNAMICS; COMPATIBILITY; NMR
Research-Areas	Polymer Science
Web-of-Science-Categories	Polymer Science
Number-of-Cited-References	19
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	14
Journal-ISO	Polym. Int.
Doc-Delivery-Number	348LL