| 摘要 |
Preparing method of title fibers of homopolymer or copolymer having repet unit (I) or (II) [R1=R2=R3= (a), (b), (c) or (d); X=H, Cl, Br, I or C1-4 alkyl or alkoxy; Y=-CH2-, -C(O)- or -O- comprises; adding lewis acid compds, e.g. BF3, AlCl3, FeCl2, FeCl3, ZnCl2, SbCl2 or HgCl2, alone with the amt. of 0.1-0.5 wt.% against pure polymerization solvent (a) or its mixed compds. with inorganic salts or content against (a) 0.1-20 wt.% into (a) of amide or urea solvent alone or their mixture to make first polymerization solvent (b), adding aromatic diamine and aromatic diacidchloride into (b), reacting at -20 - 50 deg.C to make polymer solution (c), the polymer content in (c) against (a) 4-35 wt.%, spinning simultaneously with polymn. accelerating precipitant of tert- amine solvent alone or its compds, containing (b) 0.1-30 wt.%, extruding.
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