FIELD: polymer production. SUBSTANCE: process involves interaction of equimolar amounts of p-phenylenediamine and terephthaloyl dichloride in solution of N-methyl-2-pyrrolidone with calcium chloride carried out in cylindrical reactor provided with single stirring motor used both as stirrer and as granulator. Stirring is effected under vortex conditions accompanied with adding terephthaloyl dichloride and disintegrating polymer product in the same reactor. Product has relative viscosity above 3.5 and is suited to manufacture high-strength long staple. EFFECT: improved consumer's property of polymer. 9 cl, 3 tbl, 5 ex
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