新型聚氨酯-酰亚胺聚合物的性能研究  

Study on properties of novel polyurethane-imides

作　　者：张长生[1] 尚蕾[1] 蹇锡高[2] 王锦燕[2] 王建华[1] 

机构地区：[1]中国工程物理研究院,绵阳621900 [2]大连理工大学化工学院高分子系,大连116012

出　　处：《化工新型材料》2005年第10期42-44,共3页New Chemical Materials

基　　金：中物院化工材料研究所所长基金资助项目(42101080407)

摘　　要：用“二步法”合成了含二氮杂奈酮结构聚氨酯-酰亚胺(PUI-DHPZ)嵌段聚合物。通过TG、力学强度以及溶解性分析测试,研究了PUI-DHPZ聚合物试样的性能及二酐含量对其的影响。结果表明,PUI-DHPZ聚合物具有良好的热性能,其中半寿温度比聚氨酯(PU)提高了51℃;拉伸强度随二酐含量变化呈现出先增大后减小的趋势,以PUI-DHPZ-50拉伸强度最大,扯断伸长率呈单一下降趋势;聚合物在强极性有机溶剂中有较好的溶解性能。In this paper, a series of novel polyurethane-imides containing phthalazinone moieties were synthesized by two-step method. The thermal property, mechanical property and solvable property were investigated by several means. The results of TG showed that the thermal property of the samples is improved obviously beyond PU, and T5% has a increase of 51℃. With the change of the contents of the imide-chain, the tensile strength is advanced in the first stage and then decreased, but the breaking elongation is single reduced. The PUI-DHPZ can soluble in strong polar solvents.

关 键 词：聚氨酯-酰亚胺聚合物 “二步法” 合成方法 力学强度 溶解性 拉伸强度 溶解性能 

分 类 号：TQ317.4[化学工程—高聚物工业]