Manufacture of crystallizable polymeric phenylene ether sulphone

Details Manufacture of crystallizable polymeric phenylene ether sulphone Manufacture of crystallizable polymeric phenylene ether sulphone

1974-06-24

1977-10-04

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260823, C08G 6700, C08G 7523

Patent

active

040523659

ABSTRACT:
Random or block copolymers having repeating units of the structures ##STR1## are crystallizable, in contrast to the regular alternating copolymer ##STR2## WHICH IS AMORPHOUS, AND THEY ARE USEFUL AS THERMOPLASTIC, FILM- AND FIBER-FORMING MATERIALS. They may be made by copolymerizing 4-phenoxyphenylsulphonyl and 4-phenoxybenzoyl chlorides in the presence of ferric chloride, or by copolymerizing alkali metal salts of 4-(4-chlorophenylsulphonyl) phenol and 4-(4-chlorobenzoyl) phenol.

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