METHOD OF PREPARATION FOR AROMATIC POLYAMIDE PULP

摘要

The method for preparing the pulp in homo or copolymer type, having the repeat unit of (I) or (II), comprises: making a polymerization solvent by adding sulphonic compound and tert-amine to the amide-based organic solvent, urea-based organic solvent or their mixed organic solvent; adding aromatic diamine and aromatic diacidchloride to the mixed solvent to obtain an anisotropic liquid crystal polymer solution before gelation; leaving alone the solution at a specific temp. for a specific time; separating the polymerization solvent from the polymer by steeping the solution into water or basic aqueous solution; crushing the polymer with a pulping apparatus and drying.