Abstract
A new functionalized polyurethane structure with a heteroaromatic thiophene ring having a tricyanovinyl group in the polymer side chain was synthesized. The resulting polymer was soluble in N-methylpyrrolidinone and could be processed into good optical quality films by spin casting at ca. 100 °C. The second-order nonlinear coefficient, d33, was determined to be 51 pm/V from measuring the second harmonic generation (SHG) for a thin polymer film. The outstanding orientational stability of the aligned chromophores was observed up to about 150 °C, which originated from the rigid polymer backbone and the stabilizing function of the hydrogen bridges formed between the neighboring polyurethane chains.
| Original language | English |
|---|---|
| Pages (from-to) | 136-137 |
| Number of pages | 2 |
| Journal | Synthetic Metals |
| Volume | 101 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier, France Duration: 1998 Jul 12 → 1998 Jul 18 |
Keywords
- Chromophore
- Nonlinear optics (NLO)
- Polyurethane
- Second harmonic generation (SHG)
- Tricyanovinyl group
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry