caa a22 4500 465788041 CHVBK 20180323112015.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF01032443 doi (NATIONALLICENCE)springer-10.1007/BF01032443 Phase transition, structure/properties of poly(p-phenylene terephthalamide) films post-polymerized by pyridine in NMP/CaCl2 solvent [Elektronische Daten] [Moo Rhim, Sung Kim] Summary: During polymerization of PPD(para-phenylene diamine) and TPC(terephthaloyl chloride) in NMP/CaCl2 solvent, the pahse transition from isotropic to anisotropic phase was investigated. A reaction-induced transition point can be confirmed by a flat plateau indicative of the development of anisotropic phase in the torque-time curve and also can be identified by the striated band structure under shear. Water and pyridine were used as the coagulating agent. Due to the post polymerization effect, the structures (crystallinity, orientation, fibrillation) and properties of films were affected by the shear given during the coagulation in pyridine. Springer-Verlag, 1990 Rhim Moo Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut Kim Sung Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut Polymer Bulletin Springer-Verlag 23/3(1990-03-01), 287-293 0170-0839 23:3<287 1990 23 289 https://doi.org/10.1007/BF01032443 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01032443 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rhim Moo Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Sung Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, Cheongryang, P.O. Box 131, Seoul, Korea aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 23/3(1990-03-01), 287-293 0170-0839 23:3<287 1990 23 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer