Evidence for Viscoelastic Effects in Surface Capillary Waves of Molten Polymer Films

Journal Article · Fri Jun 01 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.227801· OSTI ID:20951456

Zhang, Jiang ^[1]; Kim, Hyunjung; Lee, H; Lee, Y -J; Byun, Y; Song, S; Eom, D ^[2]; Jiao, X; Lurio, L B ^[3]; Li, C; Rafailovich, M H ^[4]; Sinha, S K ^[1]

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1. Department of Physics, University of California at San Diego, La Jolla, California 92093 (United States)
2. Department of Physics and Interdisciplinary Program of Integrated Biotechnology, Sogang University, Seoul 121-742 (Korea, Republic of)
3. Department of Physics, Northern Illinois University, DeKalb, Illinois 60115 (United States)
4. Department of Materials Science and Engineering, SUNY at Stony Brook, New York 11794 (United States)

The surface dynamics of supported ultrathin polystyrene films with thickness comparable to the radius of gyration were investigated by surface sensitive x-ray photon correlation spectroscopy. We show for the first time that the conventional model of capillary waves on a viscous liquid has to be modified to include the effects of a shear modulus in order to explain both static and dynamic scattering data from ultrathin molten polymer films.

• OSTI ID: 20951456
• Journal Information: Physical Review Letters, Vol. 98, Issue 22; Other Information: DOI: 10.1103/PhysRevLett.98.227801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CAPILLARIES
FILMS
POLYSTYRENE
SCATTERING
SURFACE PROPERTIES
THICKNESS
X-RAY SPECTROSCOPY