DuBois was successfully able to polymerize the 11-(N- carbazolyl)undecylmethacrylate monomer (shown below). Dimethylformamide, instead of toluene, was used as the polymerization solvent, which increased the solubility of both the monomer and the polymer. Copolymers of 11-(N-carbazolyl)undecylmethacrylate were synthesized and investigated for holographic electro-optical applications.236
O (CH2)11 N
Prasad, et al., produced copolymers containing poly(2-N- carbazolylethylmethacrylate),237 where the poly(2-N-carbazolylethylmethacrylate) portion performed well as hole transporting agents for holography.238,239 As a hole transporting agent, isotactic poly(2-N-carbazolylacrylate) has demonstrated very high hole transporting mobilities.240,241 LeBarny also successfully synthesized a family of carbazole based methacrylates for promising holographic applications.242 Urya and Yozo used carbazole-phenoxy based methacrylates and acrylates to produce copolymers that were used as photoconductive materials capable of inducing a smectic phase in liquid
238 239 240 241 242
DuBois, P., J. Polym., Sci., Part B; Polym. Phys., 2000, 38, 205. Zhao, C.; Park, C.; Prasad, P.N.; Zhang, Y.; Ghosal, S.; Burzynski, R., Chem. Mater., 1995, 7, 1237. Zhao, C.; Park, C.; Prasad, P.N.; Zhang, Y.; Ghosal, S.; Burzynski, R., ibid. Oshima, Y., J. Polym., Sci., Polym. Let., 1985, 23(5), 151. Urya, T.; Yozo, K., Macromolecules, 1987, 20(4), 651. Urya, T.: Yozo, K., Macromolecules, 1985, 18, 1043. LeBarny, P.; Soyer, F.; Facoetti, H., (Thomson-CSF) EP Patent, 1998, 850960.