Self-Organized Photochromic Dithienylcyclopentene Organogels
Journal of Materials Chemistry
A series of photochromic organogelators based on dithienylcyclopentene amides with a phenylene unit as a bridge between the amide and long alkyl chain were synthesized, their gelation behaviors were characterized by rheology, FT-IR, H-1 NMR, SEM, optical microscopy, UV-Vis and fluorescence spectroscopy. These organogelator molecules were found to be able to induce gelation in apolar solvents such as benzene, toluene and p-xylene to form entangled networks driven by intermolecular hydrogen bonding together with pi-pi interactions. Their excellent reversible photochromism with thermal stability in both solution and gel states was observed, and the thermally reversible property in sol-gel transition was exhibited.
Rameshbabu, Krishnamurthy; Zuo, Lu; Kim, Chanjoong; Urbas, Augustine; and Li, Quan (2011). Self-Organized Photochromic Dithienylcyclopentene Organogels. Journal of Materials Chemistry 21(39), 15673-15677. Retrieved from http://digitalcommons.kent.edu/cpippubs/68