NONLINEAR-OPTICAL POLYMERS WITH NOVEL BENZOXAZOLE CHROMOPHORES .1. PMMA COPOLYMERS WITH GOOD THERMAL AND TEMPORAL STABILITY

Authors
PARK KH JAHNG WS LIM SJ KIM N
Citation
Kh. Park et al., NONLINEAR-OPTICAL POLYMERS WITH NOVEL BENZOXAZOLE CHROMOPHORES .1. PMMA COPOLYMERS WITH GOOD THERMAL AND TEMPORAL STABILITY, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 280, 1996, pp. 27-32
Citations number
8
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
280
Year of publication
1996
Pages
27 - 32
Database
ISI
SICI code
1058-725X(1996)280:<27:NPWNBC>2.0.ZU;2-#
Abstract
New copolymers (PMBz) from the benzoxazole-based vinyl monomer and met hylmethacrylate as a comonomer, were synthesized for an improvement of thermal stability of second-order nonlinear optical activity. The the rmal stability of the chromophores in PMBz copolymers monitored by IR and UV-visible spectroscopy was much better than in PMSt copolymer bea ring general pendant stilbene units. The electro-optic coefficient r(3 3) of the poled PMBz film exhibited as large as 45 pm/V at 632 nm of H e-Ne laser. Thermal relaxation behavior of the poled PMBz films at 100 degrees C showed that the PMBz having more rigid benzoxazole structur e had better temporal stability of r(33) compared to the general stilb ene structure.