Citation: YAN Xingzhong, CHEN Yonglie, LIANG Zhaoxi, CAI Zhigang, YANG Peiqing, LOU Tin. THE SYNTHESIS OF NEW POLED CROSSLINKED POLYMETHACRYLATES AND THEIR SECOND ORDER NONLINEAR OPTICAL PROPERTIES[J]. Chinese Journal of Polymer Science, ;1996, 14(4): 346-354. shu

THE SYNTHESIS OF NEW POLED CROSSLINKED POLYMETHACRYLATES AND THEIR SECOND ORDER NONLINEAR OPTICAL PROPERTIES

Received Date: 24 August 1995

Films were prepared from mixtures of copolymers of 4-nitro-4'- [N- methylacryloyloxyethyl,N'-ethyl] amino azobenzene with glycidyl methacrylate (chromophore content: 6 mol%) andcopolymers containing anhydride units, which was obtained by the reaction of 4-nitro-4'-[N-hydroxyethyl, N'-ethyl] amino azobenzene with polymethacryloyl chloride (chromophorecontent: 25 mol %). During thermal poling process the anhydride reacts with the epoxygroup and the resulting crosslinked network structure will stabilize the second harmonic generation in the poled film.The second harmonic generation of the poled film shows a maximum with the variation of composition,this is presumed to be due to the effects of the increasing of concentration,orientation order as well as orientation stability of chromophore groups during crosslinking.
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