Abstract
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 r33 value of 57 pm/V at 632.8 nm and a d33 value 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.REFERENCES.
| Original language | English |
|---|---|
| Pages (from-to) | 59-64 |
| Number of pages | 6 |
| Journal | Molecular Crystals and Liquid Crystals |
| Volume | 267 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1995 Oct 1 |
| Externally published | Yes |
Bibliographical note
Funding Information:ACKNOW LEDGEMENT This study was carried with the support from the KIST 2000 program of Korea Institute of Science & Technology. The authors are indebted to Mr. Sangyup Song, Mr. Woong Sang Jahng, and Ms. Sun Jin Lim at the Optoelectronic Lab. in KIST for their kind advice and sincere discussion.
ASJC Scopus subject areas
- Condensed Matter Physics