摘要
以聚二甲基硅氧烷(PDM S)与聚丁醚(PTM G)为混合软段与4,4'-二苯甲基二异氰酸酯(M D I)、1,4-丁二醇(1,4-BD)制备出一系列的聚氨酯共聚物。用FT IR、DM A、TGA以及AFM分别对共聚物的结构、热性质以及表面形态进行了表征。结果表明,共聚物含有复杂的微相分离结构,而且与纯聚氨酯相比,含硅氧烷的聚氨酯比纯聚氨酯具有更好的热稳定性。
A series of thermoplastic polyurethane elastomers were synthesized with varying proportions of polytetramethylene ether glycol （ PTMG ） and hydroxyl terminated polydimethylsiloxane （HO-PDMS） macrodiols via solution polymerization in tetrahydrofuran （THF）/ dimethylacetamide （DMAC）. The structure, thermal properties and surface morphology were characterized by FTIR, DMA, TGA, and AFM, respectively. The results showed that the copolymer had a complex micro-phase structure and the thermal stability of PDMS containing polyurethane was better than pure polyurethane.
出处
《胶体与聚合物》
2006年第1期19-21,共3页
Chinese Journal of Colloid & Polymer
关键词
聚硅氧烷
聚氨酯
共聚
微相分离
热稳定性
Polydimethylsiloxane
Polyurethane
Copolymerization
Micro-phase separation Thermal stability
