A series of neutral gelators and cationic amphiphiles derived from 1,2 diphenylethylenediamine (I ) and 1,2-cyclohexanediamine (II ) was synthesised. Helical silica nanotubes were prepared utilising these organic gelators through sol-gel polycondensation of tetraethoxy silane, (TEOS-silica source). Right- and left-handed helical nanotubes respectively were obtained from a 1 : 1 mass mixture of optically active, (1S,2S)-III-(1S,2S)-V neutral gelator and (1S,2S)-IV-(1S,2S)-VI cationic amphiphile and a 1 : 1 mass mixture of optically active, (1R,2R)-III-(1R,2R)-V neutral gelator and (1R,2R)- IV-(1R,2R)-VI cationic amphiphile, indicating that the handedness of the helical nanotubes varied with the change in the neutral gelator precursors used. The nanotubes were characterised by SEM images.
Bibliographical noteFunding Information:
Acknowledgements. Support for this work came from the fund from the Korea Basic Science Institute (KBSI) (No. K3108A) for Dr. J. S. Jin and Dr. J. P. Kim and in part from the fund from the NCRC programme of NRF/MEST, Korea (grant number: 2011-0006-254) for Prof. M. H. Hyun.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering
- Materials Chemistry