Fabrication of Patterned Polydiacetylene Composite Films Using a Replica-Molding (REM) Technique
✍ Scribed by Oktay Yarimaga; Sumi Lee; Jong-Man Kim; Yang-Kyu Choi
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 450 KB
- Volume
- 31
- Category
- Article
- ISSN
- 1022-1336
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Functional three‐dimensional (3D) micropatterns of diacetylene supramolecules embedded in a host polymer have been successfully fabricated by a replica‐molding (REM) technique. Dimensional reduction as a result of liquid evaporation during the curing process does not affect the conformational features of the transferred patterns. Polymerization of the diacetylene vesicles using 254 nm UV‐light irradiation from the back‐side of the transparent substrate induces blue colored polydiacetylene (PDA) micro‐images. Interestingly, the polymerization selectively occurs in the molded areas because of the sub‐300 nm light blocking property of SU‐8. 3D fluorescence patterns are readily obtained by heat treatment of the blue images on the film.
magnified image