"Three-membered heterocyclic compounds, with nitrogen as the heteroatom, (aziridine & N-butyl aziridine) were synthesized. These compounds were then used to synthesize water reducible copolymers based on methyl methacrylate/methacrylic acid & ethyl acrylate/acrylic acid with number average molecular weights around 30,000 & 42,020 respectively.
Viscosity studies were then performed to understand the rheological behavior of these copolymers at different stages of reduction. Transmission electron microscopy (TEM) studies were done to visualize the polymer particles in the reduced state.
In the second part of the research two methods were used to incorporate liquid epoxy resin in the system to form a crosslinkable acrylic-epoxy coating. In the first one, liquid epoxy resin (EPON® 828) was added to the polymer solution and then the acrylic copolymer was reduced using pH-adjusted water. In the other method the acrylic copolymer was reduced and then water dispersible epoxy resin (EPI-REz® WD 510) was incorporated to get an acrylic-epoxy dispersion.
Films were cast from the reduced acrylic polymer solution and the acrylic-epoxy dispersion on aluminum panels. The cross linking of epoxy resins was ascertained by doing solvent tests using methyl ethyl ketone and methyl isobutyl ketone as solvents. The film cast from the reduced acrylic polymer solution dissolved completely in the solvents while the epoxy-acrylic film only swelled with very little delamination"--Abstract, page iii.
Van-De-Mark, Michael R.
Collier, Harvest L.
Patterson, G. K. (Gary Kent), 1939-
M.S. in Chemistry
University of Missouri--Rolla
ix, 70 pages
© 2000 Mandar R. Bhave, All rights reserved.
Thesis - Restricted Access
Library of Congress Subject Headings
Copolymers -- Synthesis
Coating processes -- Technological innovations
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b4446299~S5
Bhave, Mandar R., "Synthesis of crosslinkable water reducible acrylic copolymers for coatings" (2000). Masters Theses. 1938.
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