Enzymatic synthesis of polyesters

Author

Amol A. Mungikar

Abstract

"The use of enzymes as catalysts is gaining widespread use due to the need to move into green chemistry approaches. This has been fostered also by the discovery that enzymes can function in novel environments such as environmental extremes and organic solvents. In this work, soybean oil was used as the raw material to synthesize a dicarboxylic acid, which was then polymerized to get polyester. A commercially available lipoxygenase was used to form a conjugated hydroperoxide at carbon thirteen from the free fatty acids obtained from soybean oil hydrolysis. This reaction was followed by a reaction with hydroperoxide lyase derived from tomato leaves, thereby forming the 12-oxo-dodeceneoic acid and a 6-carbon aldehyde. Traumatic acid, a 12 carbon dicarboxylic acid, was formed by oxidation of 12-oxo-dodeceneoic acid. The traumatic acid thus formed was enzymatically polymerized using Novozym 435-Lipase CA to obtain the polyester. The products of each reaction were analyzed by Gas Chromatography/ Liquid Chromatography combined with Mass Spectroscopy. Gel Permeation Chromatography was used to confirm the molecular weight of the polyester"--Abstract, page iii.

Advisor(s)

Forciniti, Daniel

Committee Member(s)

Ludlow, Douglas K.
Kapila, Shubhender

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

University of Missouri--Rolla

Publication Date

Summer 2003

Pagination

viii, 33 pages

Note about bibliography

Includes bibliographical references (pages 31-32).

Rights

© 2003 Amol Mungikar, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

Polyesters -- Synthesis
Enzymes
Soy oil -- Research

Thesis Number

T 8318

Print OCLC #

54859277

Link to Catalog Record

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.

Recommended Citation

Mungikar, Amol A., "Enzymatic synthesis of polyesters" (2003). Masters Theses. 2389.
https://scholarsmine.mst.edu/masters_theses/2389