Fabrication of Patterned Polydiacetylene Composite Films Using a Replica-Molding (REM) Technique

Oktay Yarimaga; Sumi Lee; Jong-Man Kim; Yang-Kyu Choi

doi:10.1002/marc.200900662

Fabrication of Patterned Polydiacetylene Composite Films Using a Replica-Molding (REM) Technique

Macromol Rapid Commun. 2010 Feb 2;31(3):270-4. doi: 10.1002/marc.200900662. Epub 2009 Nov 18.

Authors

Oktay Yarimaga¹, Sumi Lee, Jong-Man Kim, Yang-Kyu Choi

Affiliation

¹ Department of Electrical Engineering, College of Information Science & Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea.

PMID: 21590901
DOI: 10.1002/marc.200900662

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.