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ORCID
https://orcid.org/0000-0003-4704-0424
Access Type
Campus-Only Access for Five (5) Years
Document Type
thesis
Degree Program
Chemical Engineering
Degree Type
Master of Science (M.S.)
Year Degree Awarded
2019
Month Degree Awarded
May
Abstract
The expected outcome of this project is to develop a general strategy to functionalize dispersions, by noncovalent adsorption of HMW surfactants, ultimately for applications such as hydrophobic coatings with high hiding power and hardness, improved mechanical properties via pigment-latex interactions, improved substrate adhesion or improved freeze-thaw stability. So far, we have produced poly (methyl methacrylate-co-butyl acrylate) latexes in the presence of HMW surfactants via emulsion polymerization and demonstrated stronger adsorption of HMW surfactants on particle surface than sodium dodecyl sulfate (SDS). In addition, we have developed surfactant-free latexes, poly (methyl methacrylate-co-butyl acrylate-co-methacrylic acid), as models for post functionalization with high molecular weight surfactants. The successful transfer of surfactants onto particle surface from liquid crystals was indicated by the increase in zeta potential and confirmed via chemical shifts variation in 1H NMR spectra. Additionally, the HMW surfactants were used for dispersing hydrophobic inorganic particles, such as hydrophobic carbon black, in aqueous phase, providing an indication of the general applicability and versatility of our approach.
DOI
https://doi.org/10.7275/14209737
First Advisor
John Klier
Recommended Citation
Zheng, Lei, "Noncovalent Functionalization of Latex Particles using High Molecular Weight Surfactant for High-Performance Coatings" (2019). Masters Theses. 813.
https://doi.org/10.7275/14209737
https://scholarworks.umass.edu/masters_theses_2/813