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1 The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, THAILAND
2 Materials Science and Engineering and Biomedical Engineering,
The University of Michigan, Ann Arbor, USA
| Nanocomposites of poly(p-phenylene vinylene) (PPV) were studied. The natural sodium-montmorillonite was cation exchanged with bis(hydrogenated tallowalkyl) dimethyl quaternary ammonium chloride. Content of modified montmorillonite had varied from 30-60 wt% in pure PPV. These polymer/layered silicate nanocomposites were synthesized and consisted of different organically-modified clays, proven by TGA, WAXD, FTIR, and TEM. Barrier property and color tunability improved with increasing organophilic clay content. The rate of photoluminescence decay in polymer-clay nanocomposites drastically reduced compared to that of pristine polymer. The results showed important implications for enhanced lifetime of polymer-clay nanocomposites based optoelectronic devices. |
full paper (pdf, 110 Kb)