This work was supported by the National Science Foundation (NSF) sponsored Center for Advanced Polymer and Composite Engineering (CAPCE) at The Ohio State University. We thank Mr. Hongbo Li and Dr. David L. Tomasko for glass transition temperature measurements of PLGA under carbon dioxide condition, and Dr. Derek Hansford for preparation of the 5 μm PDMS mold. We benefited from the discussion with Dr. Xia Cao on surface glass transition temperature of polymers. We also thank Alkermes Inc. and Southern Clay Products, Inc. for material donation, and Ohio MicroMD Laboratory for SEM assistance.
Three-Dimensional Assembly of Polymer Microstructures at Low Temperatures †
Article first published online: 22 MAR 2004
Copyright © 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 16, Issue 6, pages 560–564, March, 2004
How to Cite
Yang, Y., Zeng, C. and Lee, L. J. (2004), Three-Dimensional Assembly of Polymer Microstructures at Low Temperatures . Adv. Mater., 16: 560–564. doi: 10.1002/adma.200306159
- Issue published online: 22 MAR 2004
- Article first published online: 22 MAR 2004
- Manuscript Accepted: 25 DEC 2003
- Manuscript Received: 12 SEP 2003
- Polymer bonding;
- Supercritical fluids
A low-temperature, low-pressure polymer bonding technique for three-dimensional assembly of microstructures (see Figure; scale bar 5 μm) based on carbon dioxide (CO2)-enhanced chain entanglement near the polymer surfaces is presented. The environmentally benign utilization of supercritical CO2 offers scope for the production of polymer-based biomedical applications and devices.