文献类型：期刊文献

英文题名：Novel crosslinked nonlinear optical materials based on cellulose diacetate

作者：Zhou, Limin[1]; Xu, Qiang[1]; Wang, Dening[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2006

卷号：100

期号：4

起止页码：2832

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：2006169833831);WOS:【SCI-EXPANDED(收录号:WOS:000236423600034)】；

语种：英文

外文关键词：cellulose diacetate; trimethylolmelamine; hexamethylolmelamine; nonlinear optical material; chromophore

摘要：Preparation of second-order non-linear optical (NLO) materials based on cellulose diacetate and melamine derivatives was attempted. The NLO chromophore DR19 was incorporated into the cross-linking network resulting from the reaction of cellulose diacetate with trimethylolmelamine or hexamethylolmelamine. The poled and cured NLO materials exhibited electrooptic coefficient (r(13)) values of 1.11 or 1.03 pm/V, respectively, at a laser wavelength of 1550 nm, a modulation frequency of 12.7 kHz. The r(13), values decreased to 80 or 81.5%, of the initial values after 4 days. The laser transmission loss was 0.50 or 0.44 db. The crosslinking materials showed better temporal stability than that of host/guest type materials, and 73% of the initial r(13) value remained after keeping the NLO film at 100 degrees C for 15 h. No evident weight loss was found below 250 degrees C. (c) 2006 Wiley Periodicals, Inc.