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X-ray scattering studies of structur...

Jiang, Zhang.

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X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids./
Author:	Jiang, Zhang.
Description:	160 p.
Notes:	Adviser: Sunil K. Sinha.
Contained By:	Dissertation Abstracts International68-04B.
Subject:	Chemistry, Polymer. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3259633

X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids.
Jiang, Zhang.

X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids. - 160 p.

Adviser: Sunil K. Sinha.

Thesis (Ph.D.)--University of California, San Diego, 2007.

Thermally excited capillary waves are present and dominate the morphology and dynamics at the surfaces and interfaces of polymer films in a molten state. A statistical description of the capillary waves in terms of the temporal and lateral position dependent height-height correlation functions is directly related to the scattering structure factor. This can be calculated using surface scattering theories and measured by surface sensitive diffuse scattering techniques. A large part of this thesis is devoted to the investigation of the surface and interfacial dynamics of supported single layer polystyrene and bilayer polystyrene/poly(4-bromo styrene) films using x-ray photon correlation spectroscopy (XPCS), a recently developed time-resolved coherent scattering technique on high-brilliance third-generation synchrotron radiation facilities. The static properties, such as thickness, surface tension, and interfacial width, can be obtained by conventional reflectivity and static diffuse scattering experiments. Apart from the surface and interfacial capillary waves, inhomogeneities induced by thermal density fluctuations in the interior of the film also contribute to the total diffuse scattering. Therefore, a bulk scattering theory for thin film geometry is developed and compared with the experimental results from supported molten polystyrene films. We also present the first attempt to probe the structure and dynamics of single lipid bilayers consisting of phase-separated raft-like domains using x-ray and neutron scattering techniques.Subjects--Topical Terms:

1018428
Chemistry, Polymer.

X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids.
LDR:02694nam 2200325 a 45 001 946032
005 20110523
008 110523s2007 ||||||||||||||||| ||eng d
035 $a (UMI)AAI3259633
035 $a AAI3259633
040 $a UMI $c UMI
100 1 $a Jiang, Zhang. $3 1269441
245 1 0 $a X-ray scattering studies of structure and dynamics of surfaces and interfaces of polymeric liquids.
300 $a 160 p.
500 $a Adviser: Sunil K. Sinha.
500 $a Source: Dissertation Abstracts International, Volume: 68-04, Section: B, page: 2411.
502 $a Thesis (Ph.D.)--University of California, San Diego, 2007.
520 $a Thermally excited capillary waves are present and dominate the morphology and dynamics at the surfaces and interfaces of polymer films in a molten state. A statistical description of the capillary waves in terms of the temporal and lateral position dependent height-height correlation functions is directly related to the scattering structure factor. This can be calculated using surface scattering theories and measured by surface sensitive diffuse scattering techniques. A large part of this thesis is devoted to the investigation of the surface and interfacial dynamics of supported single layer polystyrene and bilayer polystyrene/poly(4-bromo styrene) films using x-ray photon correlation spectroscopy (XPCS), a recently developed time-resolved coherent scattering technique on high-brilliance third-generation synchrotron radiation facilities. The static properties, such as thickness, surface tension, and interfacial width, can be obtained by conventional reflectivity and static diffuse scattering experiments. Apart from the surface and interfacial capillary waves, inhomogeneities induced by thermal density fluctuations in the interior of the film also contribute to the total diffuse scattering. Therefore, a bulk scattering theory for thin film geometry is developed and compared with the experimental results from supported molten polystyrene films. We also present the first attempt to probe the structure and dynamics of single lipid bilayers consisting of phase-separated raft-like domains using x-ray and neutron scattering techniques.
590 $a School code: 0033.
650 4 $a Chemistry, Polymer. $3 1018428
650 4 $a Physics, Condensed Matter. $3 1018743
690 $a 0495
690 $a 0611
710 2 $a University of California, San Diego. $b Physics. $3 1035951
773 0 $t Dissertation Abstracts International $g 68-04B.
790 $a 0033
790 1 0 $a Crowell, John E. $e committee member
790 1 0 $a Hwa, Terence T. $e committee member
790 1 0 $a Sinha, Sunil K. $e committee member
790 1 0 $a Sinha, Sunil K., $e advisor
790 1 0 $a Smith, Douglas E. $e committee member
790 1 0 $a Wolynes, Peter G. $e committee member
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3259633