Effects of Melt-Processing Conditions on the Quality of Poly(ethylene terephthalate) Montmorillonite Clay Nanocomposites
Document Type
Article
Publication Date
12-1-2002
Department
Polymers and High Performance Materials
Abstract
Organically modified montmorillonite was synthesized with a novel 1,2-dimethyl-3-N-alkyl imidazolium salt or a typical quaternary ammonium salt as a control. Poly(ethylene terephthalate) montmorillonite clay nanocomposites were compounded via melt-blending in a corotating mini twin-screw extruder operating at 285 degreesC. The nanocomposites were characterized with thermal analysis, X-ray diffraction, and transmission electron microscopy to determine the extent of intercalation and/or exfoliation present in the system. Nanocomposites produced with N,N-dimethyl-N,N-dioctadecylammonium treated montmorillonite (DMDODA-MMT), which has a decomposition temperature of 250 degreesC, were black, brittle, and tarlike resulting from DMDODA degradation under the processing conditions. Nanocomposites compounded with 1,2-dimethyl-3-N-hexadecyl imidazolium treated MMT, which has a decomposition temperature of 350 degreesC, showed high levels of dispersion and delamination. (C) 2002 Wiley Periodicals, Inc.
Publication Title
Journal of Polymer Science Part B: Polymer Physics
Volume
40
Issue
23
First Page
2661
Last Page
2666
Recommended Citation
Davis, C. H.,
Mathias, L. J.,
Gilman, J. W.,
Schiraldi, D. A.,
Shields, J. R.,
Trulove, P.,
Sutto, T. E.,
Delong, H. C.
(2002). Effects of Melt-Processing Conditions on the Quality of Poly(ethylene terephthalate) Montmorillonite Clay Nanocomposites. Journal of Polymer Science Part B: Polymer Physics, 40(23), 2661-2666.
Available at: https://aquila.usm.edu/fac_pubs/3450