Abstract
A new soluble and thermally stable nonlinear optical (NLO) polyimide was synthesized by adding both tricyanopyrroline (TCP)- and tricyanofuran (TCF)-based NLO chromophores into the polymer backbone. The NLO polyimide (PI-II) bearing two different chromophores with different sizes has a glass transition temperature of 146 °C and exhibits good film forming properties. The electro-optic coefficient of the film was 84 pm/V at 1.3 μm under a poling field of 80V/μm, even though PI-II has an unusually high chromophore density of approximately 20 wt% of TCP chromophores and 23 wt% of TCF chromophores. Even with a overall chromophore loading of 43 wt%, no severe aggregation effect was observed for the sample that exhibited a relatively high EO coefficient. [Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Pages (from-to) | 403-407 |
| Number of pages | 5 |
| Journal | Macromolecular Research |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Apr |
Keywords
- electro-optic effect
- soluble polyimide
- thermal stability
- tricyanofuran chromophore
- tricyanopyrroline chromophore
ASJC Scopus subject areas
- Chemical Engineering(all)
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry