2026-09-22T21:47:10Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/82776 2023-07-11 col_2142_5131 col_2142_13836 com_2142_5130 com_2142_13835 com_2142_234

http://hdl.handle.net/2142/82776 Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2005. Paul Braun Tu, Huilin 2015-09-25T20:52:59Z 2015-09-25T20:52:59Z 10000-01-01 2005 2005 PNIPAAm chains are tethered onto silica particles via surface-initiated polymerization. Thermal annealing slightly improved the crystallinity of the colloidal assembly. Video microscopy of the two-dimensional diffusion of these colloids suggested that PNIPAAm brushes greatly improve the stability of the colloidal system. A three-fold increase in diffusion coefficient is observed when the temperature is increased from 22°C to 39°C. The LCST transition of PNIPAAm plays an important role in the diffusion of the colloids, and the interdigitation between PNIPAAm chains may have slowed down the colloidal diffusion at room temperature. Made available in DSpace on 2015-09-25T20:52:59Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3202178.pdf: 2689835 bytes, checksum: b7a700b4d4597aeae66b32cec1a36758 (MD5) Previous issue date: 2005 Embargo set by: Seth Robbins for item 84057 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 106 p. (MiAaPQ)AAI3202178 eng Biology, Molecular Polymer Brushes for Molecular Transport text Materials Science and Engineering Materials Science and Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.