High-Modulus Organic Glasses Prepared by Physical Vapor Deposition

High-Modulus Organic Glasses Prepared by Physical Vapor Deposition

Extraordinarily stable organic glasses are prepared by physical vapor deposition using indomethacin (IMC) or trisnaphthylbenzene. Utilizing Brillouin light scattering (BLS), the elastic moduli of these stable glasses (SG) are found to exceed those of ordinary glass (OG) by up to 19%. Such high‐modul...

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Veröffentlicht in:Advanced materials (Weinheim) 2010-01, Vol.22 (1), p.39-42
Hauptverfasser: Kearns, Kenneth L., Still, Tim, Fytas, George, Ediger, M. D.
Format: Artikel
Sprache:eng
Schlagworte:
Benzene Derivatives - chemistry
Elasticity
Glass - chemistry
Indomethacin - chemistry
Naphthalenes - chemistry
organic glasses
surface modification
Volatilization
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Zusammenfassung:Extraordinarily stable organic glasses are prepared by physical vapor deposition using indomethacin (IMC) or trisnaphthylbenzene. Utilizing Brillouin light scattering (BLS), the elastic moduli of these stable glasses (SG) are found to exceed those of ordinary glass (OG) by up to 19%. Such high‐modulus glasses take more than 104 times longer than the structural relaxation time to transform to the supercooled liquid (SCL).
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200901673