聚氨酯／聚甲基丙烯酸酯离聚型互穿聚合物网络的研究

STUDY ON POLYURETHANE/POLYMETH-ACRYLATE IONOMER IPN

本文采用聚氨酯中引入丁基二乙醇胺，形成带有叔氮原子的聚氨酯（ＮＰＵ）和聚甲基丙烯酸甲酯（ＰＭＭＡ）中引入甲基丙烯酸（ＭＡＡ）的方法，合成了带有离子键的离聚型互穿聚合物网络（ＩＰＮ），再通过引入甲基丙烯酸丁酯和蓖麻油，改善了ＮＰＵ／ＰＭＭＡ－ＭＭＡＩＰＮ的模量、延伸率和吸水性，并用ＤＳＣ和ＴＥＭ等研究了离聚型ＩＰＮ的相容性。

An ionomer IPN has been developed by the useof polyurethane modified with butyl di-ethanolamine to form a polyurethane bearingtertiary N (NPU) and polymethylmethacrylate(PMMA) modified with methacrylic acid(MAA) . Further addition of butyl methacrylateand castor oil can improve the modulu, elonga-tion rate and water absorption of NPU/PMMA-MAA IPN. The compatability of the ionomerIPN was determined by the use of DSC andTEM.