2026-09-19T07:45:51Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/73049 2023-07-11 col_2142_5131 col_2142_13836 com_2142_5130 com_2142_13835 com_2142_234

Granick, Steve Granick, Steve Schweizer, Kenneth S. Braun, Paul V. Sing, Charles E. Kumar, Subhalakshmi 2015-01-21T19:58:52Z 2015-01-21T19:58:52Z 2017-01-22T10:15:32Z 2014-12 2015-01-21 2014-12 The arc of the thesis is direct measurement of polymer chain properties with potent fluorescence methods imported from other interdisciplinary sciences and applied successfully to polymer physics problems for the first time. The focus is an important theme in equilibrium polymer physics - chain structure and dynamics at solid-liquid interfaces and confined geometries, respectively. The role of polymer dynamics and fluctuations on the topological confinement formed by entanglement strands in a polymer solution, as experienced by a particle of comparable size is also investigated. These questions are fundamental in many scientific and technical applications, including adhesion, interdiffusion, friction, the mechanical behavior of composite and nanocomposite materials, and functional properties of other kinds. The experimental investigations involve development of novel fluorescence techniques of spectroscopy, microscopy and image analysis with single molecule sensitivity and/or single particle accuracy. Use of these techniques allow access to phenomena occurring at a wide range of length scales and time scales, characteristic of problems in macromolecular physics. Single particle tracking experiments also show advantages of unearthing distribution of individual particle dynamics within an ensemble. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-11-13T16:56:56Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Kumar_Subhalakshmi.pdf: 4191487 bytes, checksum: 9c6b35e1f40e6c3dd5da79086e2b63ac (MD5) Kumar_Subhalakshmi.pdf: 4191526 bytes, checksum: e588a102ba71abc1100a0e1a0b485595 (MD5) Made available in DSpace on 2015-01-21T19:58:52Z (GMT). No. of bitstreams: 1 Subhalakshmi_Kumar.pdf: 4191526 bytes, checksum: e588a102ba71abc1100a0e1a0b485595 (MD5) Embargo set by: Seth Robbins for item 73238 Lift date: 2017-01-21T19:59:39Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 73238 on 2017-01-22T10:15:32Z. http://hdl.handle.net/2142/73049 en Copyright 2014 Subhalakshmi Kumar Polymer dynamics Polymer structure Polymer fluctuations Particle polymer mixture Single particle dynamics Single chain dynamics Fluorescence methods Surface forces Apparatus Polymer at interfaces Polymer confinement Microscoopy Spectroscopy Polymer Physics Random walk Single molecule Soft materials Materials Science and Engineering Polymer dynamics and fluctuations probed with fluorescence methods text Materials Science & Engineerng 1919 Materials Science & Engr 0130 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Materials Sci & Engr -UIUC 10KS0130PHD