Synchrotron x-ray scattering studies of the surface structure and dynamics of liquids and liquid films

Hyunjung Kim; Zhang Jiang; Heeju Lee; Young Joo Lee; Xuesong Jiao; Chunhua Li; Laurence Lurio; Xuesong Hu; Jyotsana Lal; Miriam Rafailovich; S. K. Sinha

doi:10.1557/proc-0899-n09-01

Synchrotron x-ray scattering studies of the surface structure and dynamics of liquids and liquid films

Hyunjung Kim
, Zhang Jiang
, Heeju Lee
, Young Joo Lee
, Xuesong Jiao
, Chunhua Li
, Laurence Lurio
, Xuesong Hu
, Jyotsana Lal
, Miriam Rafailovich
, S. K. Sinha

Materials Science and Engineering

Stony Brook University

Sogang University
University of California at San Diego
Northern Illinois University
Stony Brook University
Argonne National Laboratory
United States Department of Energy

Research output: Contribution to journal › Conference article › peer-review

Abstract

The dynamics of surface fluctuations in thin supported polystyrene films have been investigated using x-ray photon correlation spectroscopy (XPCS) in reflection geometry. The results from the films thicker than four times of the radius of gyration (R_g) of polystyrene show the behavior of the capillary waves expected in viscous liquid. However, thinner films show a deviation indicating the need to account for viscoelasticity. Theoretical considerations with viscoelastic liquid model has been performed by introducing frequency dependent viscosity and compared with Fredrickson's brush model (Macromolecules, 25, 2882 (1992)). The theory has been extended to the surface and interfacial modes in a bilayer film system, The results will be discussed in terms of surface tension, viscosity, and shear modulus.

Original language	English
Pages (from-to)	179-187
Number of pages	9
Journal	Materials Research Society Symposium - Proceedings
Volume	899
DOIs	https://doi.org/10.1557/proc-0899-n09-01
State	Published - 2005
Event	2005 MRS Fall Meeting - Boston, MA, United States Duration: Nov 28 2005 → Dec 2 2005

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title = "Synchrotron x-ray scattering studies of the surface structure and dynamics of liquids and liquid films",

abstract = "The dynamics of surface fluctuations in thin supported polystyrene films have been investigated using x-ray photon correlation spectroscopy (XPCS) in reflection geometry. The results from the films thicker than four times of the radius of gyration (Rg) of polystyrene show the behavior of the capillary waves expected in viscous liquid. However, thinner films show a deviation indicating the need to account for viscoelasticity. Theoretical considerations with viscoelastic liquid model has been performed by introducing frequency dependent viscosity and compared with Fredrickson's brush model (Macromolecules, 25, 2882 (1992)). The theory has been extended to the surface and interfacial modes in a bilayer film system, The results will be discussed in terms of surface tension, viscosity, and shear modulus.",

author = "Hyunjung Kim and Zhang Jiang and Heeju Lee and Lee, \{Young Joo\} and Xuesong Jiao and Chunhua Li and Laurence Lurio and Xuesong Hu and Jyotsana Lal and Miriam Rafailovich and Sinha, \{S. K.\}",

year = "2005",

doi = "10.1557/proc-0899-n09-01",

language = "English",

volume = "899",

pages = "179--187",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

note = "2005 MRS Fall Meeting ; Conference date: 28-11-2005 Through 02-12-2005",

}

TY - JOUR

T1 - Synchrotron x-ray scattering studies of the surface structure and dynamics of liquids and liquid films

AU - Kim, Hyunjung

AU - Jiang, Zhang

AU - Lee, Heeju

AU - Lee, Young Joo

AU - Jiao, Xuesong

AU - Li, Chunhua

AU - Lurio, Laurence

AU - Hu, Xuesong

AU - Lal, Jyotsana

AU - Rafailovich, Miriam

AU - Sinha, S. K.

PY - 2005

Y1 - 2005

N2 - The dynamics of surface fluctuations in thin supported polystyrene films have been investigated using x-ray photon correlation spectroscopy (XPCS) in reflection geometry. The results from the films thicker than four times of the radius of gyration (Rg) of polystyrene show the behavior of the capillary waves expected in viscous liquid. However, thinner films show a deviation indicating the need to account for viscoelasticity. Theoretical considerations with viscoelastic liquid model has been performed by introducing frequency dependent viscosity and compared with Fredrickson's brush model (Macromolecules, 25, 2882 (1992)). The theory has been extended to the surface and interfacial modes in a bilayer film system, The results will be discussed in terms of surface tension, viscosity, and shear modulus.

AB - The dynamics of surface fluctuations in thin supported polystyrene films have been investigated using x-ray photon correlation spectroscopy (XPCS) in reflection geometry. The results from the films thicker than four times of the radius of gyration (Rg) of polystyrene show the behavior of the capillary waves expected in viscous liquid. However, thinner films show a deviation indicating the need to account for viscoelasticity. Theoretical considerations with viscoelastic liquid model has been performed by introducing frequency dependent viscosity and compared with Fredrickson's brush model (Macromolecules, 25, 2882 (1992)). The theory has been extended to the surface and interfacial modes in a bilayer film system, The results will be discussed in terms of surface tension, viscosity, and shear modulus.

UR - https://www.scopus.com/pages/publications/34249949579

U2 - 10.1557/proc-0899-n09-01

DO - 10.1557/proc-0899-n09-01

M3 - Conference article

SN - 0272-9172

VL - 899

SP - 179

EP - 187

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - 2005 MRS Fall Meeting

Y2 - 28 November 2005 through 2 December 2005

ER -

Synchrotron x-ray scattering studies of the surface structure and dynamics of liquids and liquid films

Abstract

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