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Synthesis and Properties of Polyurethane Modified with Aminoethylaminopropyl Poly(dimethyl siloxane)

机译:氨基乙基氨基丙基聚二甲基硅氧烷改性的聚氨酯的合成与性能

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摘要

A series of polyurethanes with different siloxane contents were synthesized,which were based on 4,4'-methylene diphenyl diisocyanate (MDI),poly(tetramethylene oxide) (PTMO),aninoethylaminopropyl poly(dimethyl siloxane) (AEAPS),and butanedilo (BD).The chemical composition,sstructures,and bulk and surface properties were investigated using an infrared surface quantitative analysis technique (FTIR-ATR),surface contact angle,electron spectroscopy for chemical analysis (ESCA),stress-strain analysis,and dynamic mechanical thermal analysis (DMTA).It was shown that siloxane concentration on the surface region of the elastormers was higher than that in the bulk for a resulting surface enrichment of the siloxane,and the tensile properties of these elastomers were not changed significantly with the AEAPS modification.
机译:以4,4'-亚甲基二苯基二异氰酸酯(MDI),聚四氢呋喃(PTMO),氨基乙基氨基丙基聚(二甲基硅氧烷)(AEAPS)和丁二酮(BD)为基础,合成了一系列具有不同硅氧烷含量的聚氨酯)。使用红外表面定量分析技术(FTIR-ATR),表面接触角,化学分析电子能谱(ESCA),应力应变分析和动态机械热学研究了化学成分,结构以及体积和表面性质结果表明,弹性体表面区域的硅氧烷浓度高于本体中的硅氧烷浓度,从而使硅氧烷表面富集,并且随着AEAPS改性,这些弹性体的拉伸性能没有明显变化。

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