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oai:www.ideals.illinois.edu:2142/84143 2023-07-11 col_2142_5131 col_2142_14789 com_2142_5130 com_2142_14788 com_2142_8903

Zimmerman, Steven C. Beil, James Blystone 2015-09-25T22:13:09Z 2015-09-25T22:13:09Z 10000-01-01 2004 2004 Dendrimers having 16, 24, 32, or 64 alkene groups were synthesized and intramolecularly cross-linked. The combined use of MALDI-TOF MS and SEC analysis of the resulting structures indicated that in each case, as the degree of dendrimer cross-linking increased, its radius of gyration (Rg) decreased linearly. Upon cross-linking of the dendrimer having 64 alkene groups, atomic force microscopy (AFM) data indicated that as the degree of cross-linking increased, the height of the resulting structure deposited on a mica surface increased linearly. These results were interpreted in terms of an increase in rigidity with cross-linking. In addition, smaller dendrons and a dendrimer having 16 alkene groups were cross-linked, and the resulting structures were analyzed by 1H NMR, x-ray crystallography, MALDI-TOF MS, and SEC to provide insight into the types of the cross-links that are preferred in the cross-linking process. Made available in DSpace on 2015-09-25T22:13:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3153245.pdf: 6114774 bytes, checksum: 0d547fab4473b07c228891fc8f78356a (MD5) Previous issue date: 2004 Embargo set by: Seth Robbins for item 85424 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 139 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004. http://hdl.handle.net/2142/84143 (MiAaPQ)AAI3153245 eng Chemistry, Organic The Synthesis and Study of Dendrimers and Star Polymers Without Cores text Chemistry Chemistry University of Illinois at Urbana-Champaign Dissertation Ph.D.