Organic Glasses with Exceptional Thermodynamic and Kinetic Stability
National Institute of Standards and Technology · University of Wisconsin–Madison · +1 more institution
Abstract
Vapor deposition has been used to create glassy materials with extraordinary thermodynamic and kinetic stability and high density. For glasses prepared from indomethacin or 1,3-bis-(1-naphthyl)-5-(2-naphthyl)benzene, stability is optimized when deposition occurs on substrates at a temperature of 50 K below the conventional glass transition temperature. We attribute the substantial improvement in thermodynamic and kinetic properties to enhanced mobility within a few nanometers of the glass surface during deposition. This technique provides an efficient means of producing glassy materials that are low on the energy landscape and could affect technologies such as amorphous pharmaceuticals.
Citation impact
- FWCI
- 9.63
- Percentile
- 100%
- References
- 26
Authors
9- SFStephen F. Swallen
National Institute of Standards and Technology, University of Wisconsin–Madison, NIST Center for Neutron Research
- KLKenneth L. Kearns
National Institute of Standards and Technology, University of Wisconsin–Madison, NIST Center for Neutron Research
- MKMarie K. Mapes
National Institute of Standards and Technology, University of Wisconsin–Madison, NIST Center for Neutron Research
- YSYong Seol Kim
National Institute of Standards and Technology, University of Wisconsin–Madison, NIST Center for Neutron Research
- RJRobert J. McMahon
National Institute of Standards and Technology, University of Wisconsin–Madison, NIST Center for Neutron Research
Topics & keywords
- Glass transition
- Kinetic energy
- Chemical stability
- Amorphous solid
- Materials science
- Chemical vapor deposition
- Deposition (geology)
- Nanometre
- Affordable and clean energy