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Miscibility of poly(hydroxyether of phenolphthalein) with poly(ether sulphone)

โœ Scribed by Guo Qipeng

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
186 KB
Volume
28
Category
Article
ISSN
0014-3057

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โœฆ Synopsis

Blends of poly(hydroxyether of phenolphthalein) (PHP) with poly(ether sulphone) (PES) were prepared by casting from a common solvent; they were found to be miscible and show a single, composition-dependent glass transition temperature. All the PHP/PES blends exhibited lower critical solution temperature behaviour, i.e. phase separation occurred at elevated temperatures. A F.T.-i.r. study revealed that a hydrogen-bonding interaction occurs between these polymers but it is weaker than in pure PHP. The observed miscibility is hence proposed to be the result of specific interactions betweeen the polymers.

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