Abstract: Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.
Type:
Grant
Filed:
August 5, 1999
Date of Patent:
October 23, 2001
Assignee:
General Electric Company
Inventors:
Daniel Joseph Brunelle, Joseph Anthony Suriano, Tiberiu Mircea Siclovan, James Edward Pickett