Title

Cross-linking of Polystyrene by Friedel–Crafts Chemistry to Improve Thermal Stability

Document Type

Article

Language

eng

Publication Date

6-1999

Publisher

Elsevier

Source Publication

Polymer Degradation and Stability

Source ISSN

0141-3910

Abstract

Copolymers which contain either alcohol or chloride functionalized polystyrene units have been prepared and they participate in Friedel–Crafts chemistry to give cross-linked polymers by the evolution of either hydrogen chloride or water. Proof of cross-linking comes from the identification of the evolved gas, the insolubility of the product, and the thermal resistance of the newly formed polymer. The onset temperature for the degradation is raised by about 100°C relative to that of polystyrene and the fraction which is not volatile at 800°C ranges from 10% for the alcohol copolymers to 20% for the chloride copolymers.

Comments

Polymer Degradation and Stability, Vol. 64, No. 3 (June 1999): 387-395. DOI.

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