相平衡法测定氯化聚丙烯在不同溶剂中的θ温度  

Determination of Theta(θ) Temperature of Chlorinated Polypropylene in Different Solutions by Phase Equilibrium Method

作　　者：唐四叶[1] 曹欣祥[1] 李仕辉[1] 

机构地区：[1]洛阳师范学院化学化工学院,河南洛阳471022

出　　处：《涂料工业》2012年第2期56-59,共4页Paint & Coatings Industry

基　　金：河南省教育厅自然科学基金;项目编号为2008A530002

摘　　要：本研究的目的是测定氯化聚丙烯在不同溶剂中的θ温度。用浊度法将氯化聚丙烯进行分级,得到相对分子质量不等的若干级分,将不同级分的氯化聚丙烯于室温下溶解在不同溶剂中,测定了不同级分的氯化聚丙烯在乙酸乙酯、环己烷、丁酮和1,4-二氧六环中的浊点温度,依据线性回归获得了氯化聚丙烯在乙酸乙酯、环己烷、丁酮和1,4-二氧六环中的θ温度。氯化聚丙烯在乙酸乙酯、环己烷、丁酮和二氧六环中的θ温度分别为362.06 K、354.36 K、351.12 K和349.16 K。θ温度随相互作用参数的增大而增大。The aim of this work was to determine the theta（θ） temperatures of chlorinated polypropylene in various solvents. Chlorinated polypropylene was separated into some fractions with different molecular weights using fractional precipitations by solvent/nonsolvent technique. The chlorinated polypropylene with different molecular weight was dissolved in different solvents at room temperature. The cloud point temperature of chlorinated polypropylene in ethylacetate, cyclohexane, butanone, 1,4- dioxane were determined. The theta（θ） temperatures of chlorinated polypropylene in relative solvents were determined by linear regres- sion analysis. The theta（θ） temperatures of chlorinated polypropylene in ethylacetate, clohexane, hutamme, 1,4 - dioxane were 362.06 K, 354.36 K, 351.12 K and 349. 16 K respectively. The theta（θ） temperature increased with the increase of interaction parameter.

关 键 词：氯化聚丙烯 相对分子质量 θ温度 相互作用参数 

分 类 号：TQ630.4[化学工程—精细化工]