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Three‐Dimensional Fluorescence Image Patterning of Network Aliphatic Polyester via Microtransfer Molding and Thermal Treatment
Author(s) -
Yoon Keunbyoung,
Jeong Seonju,
Kwak Giseop
Publication year - 2007
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200700134
Subject(s) - prepolymer , polydimethylsiloxane , materials science , polyester , elastomer , fluorescence , moiety , molding (decorative) , fluorophore , composite material , polymer chemistry , optics , polyurethane , chemistry , organic chemistry , physics
Abstract This paper describes that three‐dimensional (3‐D) fluorescence image patterning of a network aliphatic polyester was successfully conducted by microtransfer molding (µTM) of the prepolymer and subsequent thermal treatment. A highly sticky, aliphatic ester prepolymer, containing a malonate moiety in the main chain, was obtained by a two‐step reaction, quantitatively. The 3‐D micropattern of the prepolymer was fabricated by µTM using polydimethylsiloxane (PDMS) as elastomeric mold. The patterns showed a clear shape without any residual layer. When the molded prepolymer was thermally treated, the patterns exhibited very distinct fluorescence images in a full color range of sky‐blue, yellowish green and red regions when excited at wavelengths of 325, 488, and 580 nm, respectively.