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dc.contributor.author김병철-
dc.date.accessioned2017-12-04T02:26:04Z-
dc.date.available2017-12-04T02:26:04Z-
dc.date.issued2016-02-
dc.identifier.citationMACROMOLECULAR RESEARCH, v. 24, NO 2, Page. 182-187en_US
dc.identifier.issn1598-5032-
dc.identifier.issn2092-7673-
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs13233-016-4025-5-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/33910-
dc.description.abstractThe lyotropic liquid crystalline behavior of poly(2-cyano-p-phenylene terephthalamide) (CY-PPTA) solution in the mixture of N-methyl-2-pyrrolidone and calcium chloride was investigated in terms of concentration and temperature. The intrinsic viscosity was decreased with increasing temperature, indicating the contraction of CY-PPTA chain at higher temperature. In dynamic viscosity measurement, the critical concentration (C*) where phase transition to the liquid crystalline phase takes place was decreased with increasing temperature. Above the C*, the dynamic viscosity was decreased and Bingham behavior got more noticeable with increasing concentration due to the development of the liquid crystalline structures. However, Bingham behavior was more notable at higher temperature at a given concentration. The viscosity curves showed the three distinct flow regions suggested by Asada and Onogi and negative first normal stress difference was observed in the range of intermediate shear rates.[Figure not available: see fulltext.] © 2016, The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht.en_US
dc.description.sponsorshipThis work was supported by the Industrial Strategic Technology Development Program (10042636, Development of para-Aramid Fibers Spinnable in Organic Solvent) funded by the Ministry of Trade, Industry and Energy (MOTIE) of Korea.en_US
dc.language.isoenen_US
dc.publisherSPRINGERen_US
dc.subjectpara-aramiden_US
dc.subjectlyotropicen_US
dc.subjectpoly(2-cyano-p-phenylene terephthalamide)en_US
dc.subjectrheologyen_US
dc.titleMolecular consideration on the lyotropic liquid crystalline behavior of poly(2-cyano-p-phenylene terephthalamide) solutions in N-methyl-2-pyrrolidone/calcium chlorideen_US
dc.typeArticleen_US
dc.relation.no2-
dc.relation.volume24-
dc.identifier.doi10.1007/s13233-016-4025-5-
dc.relation.page182-187-
dc.relation.journalMACROMOLECULAR RESEARCH-
dc.contributor.googleauthorJung, Dae Eon-
dc.contributor.googleauthorEom, Youngho-
dc.contributor.googleauthorYoon, Hu Young-
dc.contributor.googleauthorLee, Jaeyoung-
dc.contributor.googleauthorKim, Byoung Chul-
dc.relation.code2016001866-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ORGANIC AND NANO ENGINEERING-
dc.identifier.pidbckim-
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COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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