SUB-T(G) RELAXATION BEHAVIOR OF CORONA-POLED NONLINEAR OPTICAL POLYMER-FILMS AND VIEWS ON PHYSICAL AGING

被引:63
作者
LINDSAY, GA
HENRY, RA
HOOVER, JM
KNOESEN, A
MORTAZAVI, MA
机构
[1] UNIV CALIF DAVIS, DEPT ELECT ENGN & COMP SCI, DAVIS, CA 95616 USA
[2] HOECHST CELANESE CORP, ADV TECHNOL GRP, SUMMIT, NJ 07901 USA
关键词
D O I
10.1021/ma00045a010
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The complete synthesis and characterization of a poly(methyl methacrylate-co-coumaromethacrylate) is described. Thin films of this polymer were corona-poled and aged under various conditions. The intensity of second harmonic light, generated by passing a laser beam through the polarized films, indicated the average degree of dipole alignment in the films as a function of time and temperature. The long-term aging data were fit with biexponential and stretched exponential equations. A model based on diffusion of defects (holes) in a locally heterogeneous glassy matrix is discussed.
引用
收藏
页码:4888 / 4894
页数:7
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