期刊
POLYMER DEGRADATION AND STABILITY
卷 95, 期 12, 页码 2367-2375出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2010.08.016
关键词
Polyurethanes; Chemiluminescence; Thermogravimetry; Polyol; Polyisocyanate
资金
- European Community [212218]
- Grant Agency VEGA [2/0115/09]
- ERDF
The thermooxidative and thermal stabilities of polyurethanes synthesized from polyisocyanate and polyester polyol were assessed by chemiluminescence and thermogravimetry. The effect of varying heating rates, synthesis procedures (i.e., with or without a crosslinking catalyst), sample preparations for the measurements, atmospheres (oxygen, nitrogen and their mixtures) and long-term ageing under laboratory conditions were examined and a mechanism of oxidative degradation was proposed based on comparisons of the - separately determined - oxidisability of polyisocyanate and polyester polyol to that of polyurethane. (C) 2010 Elsevier Ltd. All rights reserved.
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