FTIR法研究IPDI/DMPA的聚合反应动力学  

KINETIC STUDY ON THE POLYMERIZATON OF ISOPHORONE DIISOCYANATE/DIMETHYLOL PROPANOIC ACID BY FTIR ANALYSIS

作　　者：石元昌[1] 吴佑实[1] 朱志谦[2] 李干佐[3] 

机构地区：[1]山东大学材料学院,济南250061 [2]山东大学化学学院,济南250100 [3]山东大学胶体与界面化学教育部重点实验室,济南250100

出　　处：《精细石油化工》2002年第5期38-40,共3页Speciality Petrochemicals

摘　　要：用傅里叶变换红外光谱 (FTIR)法研究了脂肪族水性聚氨酯乳液制备的关键反应 ,异佛尔酮二异氰酸酯(IPDI) /二羟甲基丙酸 (DMPA)的反应动力学 ,并探讨了催化剂二月桂酸二丁基锡对反应速率的影响。结果表明 :该体系反应属于二级反应 ,其表观活化能为 3 0 .1kJ/mol,催化剂的使用可大幅提高反应速率常数 ,但对表观活化能的降低程度不太大。The reaction kinetics between isophorone diisocyanate(IPDI) and dimethylol propanoic acid(DMPA) with and without dibutyl tin dilautate(DBTDL) catalyst, which is the key reaction in synthesis of the water base polyurethane emulsion, were studied by FTIR analysis. The results show that the reaction between IPDI and DMPA belongs to the second order reaction, the apparent activation energy without catalyst is 30.1 kJ/mol, and the catalyst could apparently enhance the reaction velocity, but the activation energy reduced slightly.

关 键 词：FTIR法 研究 IPDI/DMPA 聚合反应动力学 异佛尔酮二异氰酸酯 二羟甲基丙酸 二月桂酸二丁基锡 

分 类 号：O633.22[理学—高分子化学]