標題: | Ternary polybenzoxazine/POSS/SWCNT hybrid nanocomposites stabilized through supramolecular interactions |
作者: | Shih, Hsi-Kang Hsieh, Chun-Cheng Mohamed, Mohamed Gamal Zhu, Chao-Yuan Kuo, Shiao-Wei 應用化學系 Department of Applied Chemistry |
公開日期: | 2016 |
摘要: | In this study we linked zero-dimensional polyhedral oligomeric silsesquioxane (POSS) with one-dimensional single-walled carbon nanotubes (SWCNTs) as dual-dimensional nanohybrid complexes within polybenzoxazine matrices, stabilized through noncovalent supramolecular interactions. First, we synthesized a new bifunctionalized benzoxazine (Py-Bz-T), presenting thymine (T) and pyrene (Py) units, that displayed excellent thermal properties after thermal curing, because its T moieties increased the physical cross-linking density. Second, we prepared Py-Bz-T/OBA-POSS [octuply adenine (A)-functionalized POSS] nanocomposites and investigated, using nuclear magnetic resonance and Fourier transform infrared spectroscopies, the multiple hydrogen bonding A center dot center dot center dot T interactions between Py-Bz-T and OBA-POSS. Finally, we prepared Py-Bz-T/OBA-POSS/SWCNT ternary hybrid complexes dispersed in THF, stabilized through both multiple hydrogen bonding and pi-pi stacking interactions. Transmission electron microscopy revealed that the SWCNTs were highly dispersed and covered by the Py-Bz-T/OBA-POSS nanocomposites; these ternary hybrid complexes were stabilized through pi-pi interactions between Py-Bz-T/OBA-POSS and the SWCNTs, as evidenced using fluorescence spectroscopy. |
URI: | http://dx.doi.org/10.1039/c5sm02569a http://hdl.handle.net/11536/133352 |
ISSN: | 1744-683X |
DOI: | 10.1039/c5sm02569a |
期刊: | SOFT MATTER |
Volume: | 12 |
Issue: | 6 |
起始頁: | 1847 |
結束頁: | 1858 |
顯示於類別: | 期刊論文 |