Sulfalkylation of hydroxyethylated polybenzimidazole polymers

Details Sulfalkylation of hydroxyethylated polybenzimidazole polymers Sulfalkylation of hydroxyethylated polybenzimidazole polymers

1989-11-13

1991-03-05

Anderson, Harold D.

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

Synthetic resins

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

521 30, 525419, 525420, C08G 7318

Patent

active

049978926

ABSTRACT:
A sulfoalkyl derivative of N-substituted hydroxyethylated polybenzimidazole is disclosed, produced by the reaction of an N-substituted hydroxyethylated polybenzimidazole anion with a sultone. The N-substituted hydroxyethylated polybenzimidazole polymer is first reacted with an alkali hydride to produce the anion of N-substituted hydroxyethylated polybenzimidazole. The N-substituted hydroxyethylated polybenzimidazole anion is then reacted with the sultone to produce a sulfoalkyl derivative of the N-substituted hydroxyethylated polybenzimidazole polymer. These derivatives find great use as ion exchange devices.

REFERENCES:
patent: 4814399 (1989-03-01), Sansone et al.

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