Novel preparation method for improving the dispersion of ionic liquid-modified montmorillonite in poly(ethylene terephthalate)

2014 ◽  
Vol 37 (4) ◽  
pp. 1259-1266 ◽  
Author(s):  
Kazem Majdzadeh-Ardakani ◽  
Elizabeth A. Lofgren ◽  
Saleh A. Jabarin
Keyword(s):  
Ionic Liquid ◽  
Ethylene Terephthalate ◽  
Preparation Method ◽  
Modified Montmorillonite ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Degradation process of low molar mass poly(ethylene terephthalate)/organically modified montmorillonite nanocomposites

2016 ◽  
Vol 30 (4) ◽  
pp. 504-520 ◽  
Author(s):  
Juliana A de Lima ◽  
Lays B Fitaroni ◽  
Daniel VA Chiaretti ◽  
Manuela LQA Kaneko ◽  
Sandra A Cruz
Keyword(s):  
Ethylene Terephthalate ◽  
Molar Mass ◽  
Degradation Process ◽  
Melt Processing ◽  
Platelet Surface ◽  
Modified Montmorillonite ◽  
Organically Modified Montmorillonite ◽  
Poly Ethylene Terephthalate ◽  
Organically Modified ◽  
Poly Ethylene

The aim of this work is to investigate the degradation of low molar mass poly(ethylene terephthalate) (PET)/organically modified montmorillonite (OMMT) clay nanocomposites prepared by melt processing. The rheological behavior in combination with transmission electron microscopic images suggests an intercalation and therefore a percolating network. Furthermore, the results indicate that the increase of organoclay content caused a degradation of PET during processing of PET/OMMT nanocomposites, once it was observed the PET molar mass decreases. The effect mentioned could be attributed to an increase of Brønsted acidic sites on the platelet surface, which is produced by the Hofmann elimination reaction of ammonium, and also the presence of residual metal compounds on clay surface might possibly favored the polymer matrix degradation process.

scholarly journals Cellulose ionics: switching ionic diode responses by surface charge in reconstituted cellulose films

The Analyst ◽  
2017 ◽  
Vol 142 (19) ◽  
pp. 3707-3714 ◽  
Author(s):  
Barak D. B. Aaronson ◽  
David Wigmore ◽  
Marcus A. Johns ◽  
Janet L. Scott ◽  
Igor Polikarpov ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Surface Charge ◽  
Ethylene Terephthalate ◽  
Liquid Media ◽  
Cellulose Films ◽  
Poly Ethylene Terephthalate ◽  
Current Rectification ◽  
Poly Ethylene ◽  
Modified Cellulose

Cellulose films as well as chitosan-modified cellulose films of approximately 5 μm thickness, reconstituted from ionic liquid media onto a poly(ethylene-terephthalate) (PET, 6 μm thickness) film with a 5, 10, 20, or 40 μm diameter laser-drilled microhole, show significant current rectification in aqueous NaCl.

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