Thermal study of polyurethane elastomers based on biopitch-PEG-MDI system

被引：16
作者：
Araújo, RCS [1 ]
Pasa, VMD [1 ]
机构：
[1] Univ Fed Minas Gerais, Dept Quim, Belo Horizonte, MG, Brazil
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2002年 / 67卷 / 02期
关键词：
biopitch; DSC; PEG; polyurethane; TG;
D O I：
10.1023/A:1013906611861
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Polyurethanes based on biopitch and PEG of distinct molecular masses ((M) over bar (w) 1500, 4000 and 6000) were synthesized using polymeric MDI. Different materials were obtained through syntheses using various biopitch content and NCO/OH ratio. Thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) were used to determine their thermal properties. Variations of thermal stability were observed with amorphous and semicrystalline structures depending on the biopitch content and the NCO/OH ratio.
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页码：313 / 319
页数：7
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