Process for the modification of aromatic polymers via Friedel-Cr

Details Process for the modification of aromatic polymers via Friedel-Cr Process for the modification of aromatic polymers via Friedel-Cr

1986-01-30

1987-06-16

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525397, 525462, 525466, 525467, 525537, 525905, C08G 6548, C08L 7104

Patent

active

046737170

ABSTRACT:
A process for the addition of pendant groups to polyarylenes comprises the steps of charging a reaction vessel with a solution of a polyarylene and a Friedel-Crafts catalysts; said polyarylene having the formula ##STR1## adding to the reaction vessel a pendant forming group G, wherein G is selected from the group consisting of sulfonyl halides, sulfonamide halides, alkylhalides, acylhalides and phosphorus acid halides; heating the contents of the reaction vessel to form a substituted polyarylene having the formula ##STR2## and thereafter recovering the substituted polyarylene. The substituted polyarylenes are novel and have utility as a semipermeable membrane and a process for the separation of gases therewith is also provided.

REFERENCES:
patent: 3350844 (1967-11-01), Robb
patent: 3780496 (1973-12-01), Ward, III et al.
patent: 4427419 (1984-01-01), Li
patent: 4431793 (1984-02-01), Rosenquist
patent: 4488886 (1984-12-01), Zampini

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