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362.06K、354.36K、351.12K和349.16K。θ温度随相互作用参数的增大而增大。
关键词:
氯化聚丙烯,
相对分子质量,
θ温度,
相互作用参数
Abstract: 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 regression analysis. The theta( θ) temperatures of chlorinated polypropylene in ehylacetate clohexane, butanone,1,4-dioxane were 362. 06 K, 354. 6 K, 351. 12 K and 349. 16 K respectively. The theta(θ) temperature increased with the increase of interaction parameter.
Key words:
chlorinated polypropylene,
molecular weight,
theta(θ) temperature,
interaction parameter
唐四叶, 曹欣祥, 李仕辉. 相平衡法测定氯化聚丙烯在不同溶剂中的 θ温度[J]. 涂料工业, 2012, 42(2): 56-59.
Tang Siye, Cao Xinxiang. Li Shihui. Determination of Theta(θ) Temperature of Chlorinated Polypropylene in Different Solutions by Phase Equilibrium Method[J]. Paint & Coatings Industry, 2012, 42(2): 56-59.