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Fabrication of Patterned Polydiacetylene Composite Films Using a Replica-Molding (REM) Technique
- Authors
- Yarimaga, Oktay; Lee, Sumi; Kim, Jong-Man; Choi, Yang-Kyu
- Issue Date
- Feb-2010
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- films; fluorescence; polydiacetylene; replica-molding; thermochromic transition
- Citation
- MACROMOLECULAR RAPID COMMUNICATIONS, v.31, no.3, pp.270 - 274
- Indexed
- SCIE
SCOPUS
- Journal Title
- MACROMOLECULAR RAPID COMMUNICATIONS
- Volume
- 31
- Number
- 3
- Start Page
- 270
- End Page
- 274
- ISSN
- 1022-1336
- 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 2 54 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.
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Related Researcher
- Kim, Jong Man
- COLLEGE OF ENGINEERING (DEPARTMENT OF CHEMICAL ENGINEERING)