Self-Crosslinkable Side-Chain Nonlinear Optical Copolymer
作者:
TaekSeung Lee,
SooYoung Park,
DongHoon Choi,
Nakjoong Kim,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 267,
issue 1
页码: 59-64
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508033973
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A self-crosslinkable second-order nonlinear optical copolymer with thermal stability at 100°C was prepared by the copolymerization of methacrylic nonlinear optical monomer with glycidyl methacrylate. The nonlinear optical property of this copolymer was compared with that of well-known side-chain polymer P2ANS. Electro-optic coefficient and second harmonic generation measurements showed a r33value of 57 pm/V at 632.8 nm and a d33value of 45.5 pm/V at 1064 nm. Moreover, self-crosslinking during poling was observed between the epoxy groups in the copolymer without adding any crosslinking agent and thus the copolymer showed an excellent thermal stability of aligned chromophores at 100°C. It is thought that the crosslinking was performed between the epoxy groups due to the catalytic basicity of tertiary amine groups in the NLO monomer.
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