Improving the Thermal Stability of Polystyrene by Friedel-Crafts Chemistry

Document Type

Article

Language

eng

Publication Date

9-1997

Publisher

Elsevier

Source Publication

Polymer Degradation and Stability

Source ISSN

0141-3910

Abstract

The alkylation of polystyrene with a difunctional alkylating agent, such as 1,4-benzenedimethanol, proceeds in the presence of a zeolite catalyst to give a significant amount of cross-linked, and thermally stable, polymer. Various zeolites are used as catalysts; there is apparently some relationship between the type of zeolite and its catalytic activity. The extent of cross-linking depends upon temperature. With some zeolites there is no reaction below 300 °C while others will permit reaction below 300 °C. A significant fraction of the polymer does not volatilize at 800 °C in a nitrogen atmosphere.

Comments

Polymer Degradation and Stability, Vol. 57, No. 3 (September 1997): 293-299. DOI.

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