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Thesis
Silane-Functionalized Polymers Using "Click Chemistry" for Surface Applications
Master of Science (M.S.), Drexel University
22 Jun 2021
DOI:
https://doi.org/10.17918/00000411
Abstract
PET-RAFT and photoiniferter polymerizations were used to synthesize low dispersity (Đ) copolymers of glycidyl methacrylate (GMA) and poly(ethylene glycol) methyl ether methacrylate (PEGMEMA) which were then modified using two successive "click" reactions. The polymerization and first "click" reaction, the azide-epoxy ring-opening, steps were done using a one-pot method, with the "click" reaction using stoichiometric amounts of azide and epoxy at 40 °C. Copper catalyzed azide-alkyne cycloadditions (CuAAC) were then conducted with Cu(0) to install a series of 4-silyl-1,2,3-triazoles as pendant groups on the polymer. Finally, a series of increasing size silane-functionalized polymers (trimethyl, -ethyl, and -isopropyl) were explored against both acidic and basic deblocking conditions to evaluate their stability. SEC analysis indicates that all three polymers were stable under basic deblocking conditions with K2CO3 in methanol, however, either aggregation or crosslinking of samples during acidic deblocking with 50/50 vol. % TFA/DCM prevents an accurate analysis of stability. The silane linkage stability is a crucial part of their applicability for low surface energy applications.
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Details
- Title
- Silane-Functionalized Polymers Using "Click Chemistry" for Surface Applications
- Creators
- Jacob Michael Nantz
- Contributors
- Christopher Y. Li (Advisor)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- xii, 61 pages
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- Materials (Science and) Engineering (Metallurgical Engineering) [Historical]; College of Engineering (1970-2026); Drexel University
- Other Identifier
- 991015104648504721