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