聚乙二醇溶液的粘度行为

The Viscositic Property of Polyethylene Glycol Solution

本文用特性粘数、气相渗透计法和体积排除色谱法以［η］＝ｋ_θ［Ａ＋（１＋ＡＢ）Ｍ^（１／２）＋ＢＭ］形式导出聚乙二醇在四氢呋喃和水两种溶剂中的普适特性粘度方程：四氢呋喃，２５℃：［η］＝０．１２６（１＋０．００４Ｍ^（１／２））（５＋Ｍ^（１／２））水，３５℃：［η］＝０．１４０（１＋０．００４Ｍ^（１／２））（３．５＋Ｍ^（１／２））

The generalized intrinsic viscosity-molecular weight equations in the forrn of [n]=kθ[A+ (1+AB)M1/2+BM] for polyethylene glycol in tetrahydrofuran and water were deduced by intrinsic viscosity, vapor pressure osmometry and size exclusicn chromatography methods :THF , 25 ℃: [n] = 0. 1 26 ( 1 +0. 004M1/2 ) (5+M1/2):H2O, 35℃: [n]= 0. 140(1 +0. 004M1/2)(3. 5+M1/2.