Part 1, Autodeposition coatings for aluminum alloys ; Part 2: Synthesis of monomers and polymers from soybean oil

Author

Manesh Nadupparambil Sekharan

Keywords and Phrases

Autodeposition coatings; Macromonomer

Abstract

"An autodeposition coating process was developed for aluminum alloys; which has different resin chemistry and deposition mechanism as compared to the autodeposition process reported to date. Autodeposition of organic polymer films onto aluminum 7075 alloy surface was developed with formation of an in-situ conversion coating underneath the organic layer. In the second part of the project, autodeposition coating process for aluminum alloy was developed with out the use of oxidizing agents in coating bath. The deposition mechanism was depended on destabilization of polymer latex with manganese cations generated from a previously formed manganese oxide layer. Miniemulsion polymerization method was used to synthesize epoxy-polyurethane-acrylic hybrid latexes. In third part of the study, a free radically polymerizable carbonate functional macromonomer was synthesized from epoxidized soybean oil by reaction with carbon dioxide followed by transesterification with hydroxyl ethyl methacrylate. Copolymers containing the macromonomer were synthesized through a miniemulsion approach. Cross-linking reactions of these carbonate functional copolymers with diamines to produce a hydroxyl functional polyurethane net work were studied. In the final part of the study we have investigated conversion of the soybean oil or its methyl ester into free radically polymerizable monomer. Soy acrylate was prepared by base catalyzed transesterification reactions of soybean oil or methyl soyate with hydroxyl ethyl methacrylate (HEMA)"--Abstract, page iv.

Department(s)

Chemistry

Degree Name

Ph. D. in Chemistry

Publisher

University of Missouri--Rolla

Publication Date

Summer 2005

Journal article titles appearing in thesis/dissertation

• Autodeposition coatings for aluminum, 7075 T-6 alloys with in-situ conversion coating
• Autodeposition on aluminum alloys facilitated by manganese oxide conversion coatings
• Synthesis of carbonate functional free radically polymerizable monomer and polymers from epoxidized soybean oil
• Synthesis of polymerizable glycol esters of fatty acids by transesterification of methyl soyate with hydroxy functional acrylicates under continuous removal of methanol

Pagination

xx, 186 pages

Note about bibliography

Includes bibliographical references.

Rights

© 2005 Manesh Nadupparambil Sekharan, All rights reserved.

Document Type

Dissertation - Citation

File Type

text

Language

English

Subject Headings

Coating processes -- Technological innovationsAluminum alloysPolymersSoy oilEmulsion polymerization

Thesis Number

T 8824

Print OCLC #

71205962

Recommended Citation

Nadupparambil Sekharan, Manesh, "Part 1, Autodeposition coatings for aluminum alloys ; Part 2: Synthesis of monomers and polymers from soybean oil" (2005). Doctoral Dissertations. 1631.
https://scholarsmine.mst.edu/doctoral_dissertations/1631