IR研究聚氨酯预聚反应的活化能

Study on Activation Engergy of Polyurethane During Prepolymerization by IR

摘要: 在滴定分析判断聚乙二醇（ＰＥＧ）和２，４－二甲苯二异氰酸酯（ＴＤＩ）预聚反应为一级反应的基础上，用ＩＲ分析ＰＥＧ和ＴＤＩ预聚反应过程中ＮＣＯ基的定量变化，结合Ａｒｒｈｅｎｉｕｓ经验式得ＰＥＧ入ＴＤＩ预聚反应的表观活性能Ｅα＝８６．９ｋＪｍｏ６－２，为研究其预聚反应的历程奠定基础。

Abstract: By the titration of NCO content, the PEG600-TDI prepolymerization was proved to be 1 order reaction. NCO group variation during the PEG600-TDI pre-polymerization was measured by IR quantitive analytical method,and with the help of Arrhenius emipirical for