Browse

Thermal Degradation of Polyaniline in Polyaniline/Na+-Montmorillonite Nanocomposites

DC Field Value Language
dc.contributor.authorLee, Dongkyu-
dc.contributor.authorChar, Kookheon-
dc.date.accessioned2009-07-28T05:59:33Z-
dc.date.available2009-07-28T05:59:33Z-
dc.date.issued2002-01-24-
dc.identifier.citationPolym Degrad Stabil 2002;75:555en
dc.identifier.issn0141-3910-
dc.identifier.urihttps://hdl.handle.net/10371/5867-
dc.description.abstractThe thermal degradation behavior of polyaniline (PANI) in PANI/Na+-montmorillonite (Na+-MMT) nanocomposites prepared by in-situ intercalative polymerization of aniline into Na+-MMT has been investigated by thermogravimetric analysis (TGA) and X-ray diffraction (XRD). The residual weight (TG curves) and its weight derivative (DTG curves) of the nanocomposites suggest that the PANI chains for PANI/Na+-MMT nanocomposites are more thermally stable than those for a simple PANI/Na+-MMT mixture. This improvement in the thermal stability for the nanocomposites is attributed to the presence of Na+-MMT nanolayers with a high aspect ratio acting as barriers, thus shielding the degradation of PANI in the nanogalleries and also hindering the diffusion of degraded PANI from the nanocomposites. The shielding effect of the nanolayers is found to be significant as the Na+-MMT content in the PANI/Na+-MMT nanocomposites is increased. The XRD patterns of the nanocomposites after TGA measurements indicate that the basal spacing (d001) of the PANI/Na+-MMT nanocomposites is almost intact, implying that the thermal decomposition of the PANI chains is believed to occur mainly outside the silicate layers.en
dc.description.sponsorshipThis work was supported by the Korean Ministry of Education through the Brain Korea 21 Program at Seoul National University.en
dc.language.isoen-
dc.publisherElsevieren
dc.subjectPolyanilineen
dc.subjectNa+-montmorilloniteen
dc.subjectIntercalationen
dc.subjectNanocompositesen
dc.subjectThermal stabilityen
dc.subjectThermogravimetric analysis (TGA)en
dc.titleThermal Degradation of Polyaniline in Polyaniline/Na+-Montmorillonite Nanocompositesen
dc.typeArticleen
dc.contributor.AlternativeAuthor이동규-
dc.contributor.AlternativeAuthor차국헌-
dc.identifier.doi10.1016/S0141-3910(01)00259-2-
Appears in Collections:
College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
Files in This Item:
There are no files associated with this item.
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse