Date of Award
Spring 5-2018
Degree Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Polymers and High Performance Materials
Committee Chair
Derek L. Patton
Committee Chair Department
Polymers and High Performance Materials
Committee Member 2
Robson F. Storey
Committee Member 2 Department
Polymers and High Performance Materials
Committee Member 3
Sarah E. Morgan
Committee Member 3 Department
Polymers and High Performance Materials
Committee Member 4
Charles L. McCormick
Committee Member 4 Department
Polymers and High Performance Materials
Committee Member 5
Yoan C. Simon
Committee Member 5 Department
Polymers and High Performance Materials
Abstract
Polymer particles (micro to nano) with tunable functionality have emerged as a promising and viable technology platform for applications including coatings, cosmetics, nanomedicine, and imaging. Unfortunately, the lengthy polymerization time and lack of intrinsic functionality in the monomers used to fabricate particles is an industrial challenge. Thiol-ene chemistry cirmcumvents these limitations with very rapid polymerization kinetics, high reaction yields, with supressed side reactions and inherent functionality. This dissertation demonstrates the utility of thiol-ene/yne polymerization in miniemulsion and microfluidics to generate functional materials in a one-pot-method. The functionality is typically generated via off-stoichiometry thiol-ene (OSTE) resins which allow for either excess SH or alkene/yne functionality to be present throughout the material. The accessability of these functional groups are proven via infrared spectroscopy, confocal and optical microscopy.
The first chapter focuses on the burgeoning field of thiol-ene/yne chemistry within multiphase emulsions and introduces innovative methods to generate functional particles/materials. Chapter II describes the first thiol-ene miniemulsion process where surfactant concentration, ultrasonication time/amplitude, and OSTE resins are explored. Chapter III expands the miniemulsion process to include thiol-yne resins in addition to the ability to encapsulate hydrophobic materials such as modified silver nanoparticles. Chapter IV highlights the utility of thiol-ene resins within microfluidics to generate unique multiphase particles that can outperform traditional acrylate-based resins. The application of thiol-ene chemistry in emulsions introduces a new class of functional materials which can be easily translated into exicisting technologies.
ORCID ID
0000-0003-3343-2945
Copyright
2018, Douglas Amato
Recommended Citation
Amato, Douglas, "Functional Emulsions via Thiol-Ene Chemistry" (2018). Dissertations. 1518.
https://aquila.usm.edu/dissertations/1518