期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 101, 期 1, 页码 331-337出版社
SPRINGER
DOI: 10.1007/s10973-010-0674-3
关键词
Organic-inorganic hybrid; Thermal properties; Thermogravimetric analysis (TG)
The thermal behaviour of a new kind of hybrid system based on silanized poly(ether-urethanes) (SPURs) has been analyzed by thermogravimetric analysis (TG). The influence of the chemical nature of employed alkoxysilanes, polyether diol molecular weight and the physical state of the obtained hybrids (cured and non-cured) has been studied. The results show that in the non-cured state, aminosilane-based systems present a higher stability compared with those based on isocyanatesilane. However, in the cured state, both types of hybrids present a similar thermal stability, but much higher than their corresponding partners before the curing process. The presence of the inorganic silica network improves the thermal stability of all the systems studied.
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