The effects of variable molecular weight and solvents, in water-reducible acrylic resins

Author

John Adrion Jones

Keywords and Phrases

Water-borne coatings systems

Abstract

"Two water-reducible polymers were synthesized by free-radical polymerization. A low molecular weight polymer (22,000) and a high molecular weight polymer (118,000) polymer based on methyl methacrylate (MMA), methacrylic acid (MAA), and butyl methacrylate (BMA) were synthesized. Properties of each polymer were characterized and studied. For each polymer, the glass transition (Tg), was determined. Several coalescent solvents were used to examine the effectiveness of each, on lowering the Tg of the two polymers. These experiments showed that texanol and E.B. performed the best. Viscosity profiles were run on polymer solutions containing both polymers at a range of 1%-4% coalescent aid. The viscosity profiles demonstrated that at higher levels of coalescent solvents, the viscosities became unstable. From the viscosity profile data, two paints were formulated. The general coatings were formulated to demonstrate the effect of coalescent aid on high molecular weight polymers and low molecular weight polymers. The results of testing demonstrated that there are trends and similarities between the two paints"--Abstract, page iii.

Advisor(s)

Van-De-Mark, Michael R.

Committee Member(s)

Collier, Harvest L.
Johnson, James Winston

Department(s)

Chemistry

Degree Name

M.S. in Chemistry

Sponsor(s)

University of Missouri--Rolla. Department of Chemistry

Publisher

University of Missouri--Rolla

Publication Date

2001

Pagination

x, 88 pages

Rights

© 2001 John Adrion Jones, All rights reserved.

Document Type

Thesis - Citation

File Type

text

Language

English

Subject Headings

Polymerization
Polymers -- Viscosity
Coating processes
Glass transition temperature
Particle size determination
Free radical reactions

Thesis Number

T 7901

Print OCLC #

47769312

Link to Catalog Record

Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.

Recommended Citation

Jones, John Adrion, "The effects of variable molecular weight and solvents, in water-reducible acrylic resins" (2001). Masters Theses. 5991.
https://scholarsmine.mst.edu/masters_theses/5991