In:
Journal of Nonlinear Optical Physics & Materials, World Scientific Pub Co Pte Ltd, Vol. 08, No. 04 ( 1999-12), p. 461-468
Abstract:
Two high T g (250°C and 258°C) polyimides embedded with triphenyl imidazole chromophores were synthesized through addition polymerization. Simultaneous poling and polymerization and in situ second harmonic generation measurement technology were carried on to evaluate the thermal stability of the poling induced orientations. Moderate d 33 values of 15 pm/V and 16 pm/V were determined. The SHG signals of these poled polymer films are without any decay at temperature lower than 150°C, it begins to relax rapidly over 195°C. The half-decay temperatures of the samples' orientation are as high as 240°C and 24°C respectively.
Type of Medium:
Online Resource
ISSN:
0218-8635
,
1793-6624
DOI:
10.1142/S0218863599000333
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
1999
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