title: Surface and thermodynamic characterization of conducting polymers by inverse gas chromatography II. Polyaniline and its blend.
abstract: Inverse gas chromatography was used to characterize both doped, the undoped polyaniline (PANI), and its blend with nylon-6 using 27 solutes. The change in the morphology of these polymers was detected between 80 and 180 degrees C and was complemented by the degree of crystallinity. Delta H1(s)values of all solutes - pure polymers were found endothermic and exothermic for the blend. The X'23 depended on the chemical nature of solutes; a correction measure was not successful in obtaining the true values of X'23. X'23 showed a phase separation of the blend (60:40 w/w) between 80 and 180 degrees C. Blending nylon-6 with PANI has lowered the dispersive surface energy of PANI while increasing the surface energy of nylon-6.
authors.affiliation: Department of Chemistry, State University of New York, College at Buffalo, 1300 Elmwood Avenue, Buffalo, NY 14222, USA.
authors.forename: Ruoqiu
authors.initials: R
authors.lastname: Wu
authors.forename: Danni
authors.initials: D
authors.lastname: Que
authors.forename: Zeki Y
authors.initials: ZY
authors.lastname: Al-Saigh
mesh_terms: D000465:Algorithms; D000814:Aniline Compounds / Q000737:chemistry*; D002209:Caprolactam / Q000031:analogs & derivatives* / Q000737:chemistry; D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D003460:Crystallization; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties; D013816:Thermodynamics; D044366:Transition Temperature
chemical_list: D000814:Aniline Compounds; D011108:Polymers; C416807:polyaniline; C009916:nylon 6; D002209:Caprolactam