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Polyurethane Foams of Improved Thermal Stability
Author(s) -
CisekCicirko Irmina,
Lubczak Jacek
Publication year - 2002
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/1439-2054(200210)287:10<665::aid-mame665>3.0.co;2-7
Subject(s) - materials science , polyurethane , thermal stability , composite material , thermal , polymer science , chemical engineering , thermodynamics , physics , engineering
Abstract In reactions of polyetherols prepared from hydroxymethyl derivatives of uric acid and typical oxiranes with isocyanates and water one obtains a new group of polyurethane foams containing purine rings in their structure. These polyurethanes withstand prolonged heating at temperatures as high as 200 °C. Preliminary results on the effect of the type of polyetherol and the composition used in preparation of the polyurethane foams on their properties are presented. The results of studies on thermal stability and mechanical properties of the foams before and after thermal treatment are also reported.

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