| 초록 |
Nonlinear optical (NLO) polymers are attractive because of their potential applications in optoelectronic technology such as telecommunications and optical data storage. In the developments of NLO polymers for applications, stabilization of electrically induced dipole alignment is one of important considerations. Main-chain NLO polymers have good thermal stability, but they often do not dissolve in organic solvents, which make them unusable to fabricate stable noncentrosymmetric films. Side-chain NLO polymers have the advantages such as good solubility, but they often suffer from poor stability of dipole alignments at high temperatures. In this work we prepared novel Y-type polyurethane containing 4-(2’-carbomethoxy-2'-cyano)vinyl-5-nitrocatecholic groups as NLO chromophores, which constitute parts of the polymer backbone. After confirming the structure of the resulting polymer, we investigated its properties. |
