Preparation method of polyphenylene sulfide resin, and polyphenylene sulfide resin prepared thereby

Abstract

A preparation method of a polyphenylene sulfide resin, and a polyphenylene sulfide resin prepared by the method using a sulfur-containing compound, an alkaline substance and p-dichlorobenzene as raw materials, a fatty acid as a polycondensation aid to carry out a polycondensation reaction. After purification treatment, a primary polyphenylene sulfide is obtained, which then reacts with a terminal-group adjusting agent at a high temperature to generate the polyphenylene sulfide resin resulting in high yield and low cost. The prepared polyphenylene sulfide resin has high reactivity, high melting crystallization temperature and excellent thermal stability. The resulting polyphenylene sulfide resin can be directly used for extrusion and injection molding.

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