NLO-active maleimide copolymers

Masao Kato; Takao Shiraga; Takashi Fukuda; Hiro Matsuda; Hachiro Nakanishi

doi:10.1117/12.373670

29 December 1999 NLO-active maleimide copolymers

Masao Kato, Takao Shiraga, Takashi Fukuda, Hiro Matsuda, Hachiro Nakanishi

Proceedings Volume 4016, Photonics, Devices, and Systems; (1999) https://doi.org/10.1117/12.373670
Event: Photonics Prague '99, 1999, Prague, Czech Republic

Abstract

We synthesized some novel rigid NLO-active maleimide copolymers bearing DR-1 moieties (PMPD, PHSD, and PHND). All copolymers exhibited high Tgs and good solubilities for common solvents and excellent film-forming properties. Dependence of film thickness on the d₃₃ value for the poled copolymers induced by corona poling was investigated and it was demonstrated that from less than thickness of 0.3 micrometers decrease of the thickness gives rise to remarkable increase in the d₃₃ value. The poled copolymers exhibited large d₃₃ value for PMPD, 290 X 10^-9 esu for PHSD and 350 X 10^-9 esu as well as large r₃₃ values. The d₃₃ values of the poled copolymers were kept constant even after standing 1000 h at 80 degrees C, although a small decrease was observed at a very initial state. Further, the d₃₃ values did not change up to ca. 123 degrees C upon heating at the rate of 10 degrees C/min in all cases.

Citation Download Citation

Masao Kato, Takao Shiraga, Takashi Fukuda, Hiro Matsuda, and Hachiro Nakanishi "NLO-active maleimide copolymers", Proc. SPIE 4016, Photonics, Devices, and Systems, (29 December 1999); https://doi.org/10.1117/12.373670

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