Summary
A broad range of crosslinked polyesters were prepared by curing epoxidized soybean oil with various dicarboxylic acid anhydrides in the presence of cure catalysts such as tertiary amines, imidazoles, or aluminum acetylacetonate. The mechanical and thermal properties of the casting resins were dependent upon the type of anhydride. While the anhydrides of hexahydrophthalic acid, succinic acid, and norbornene dicarboxylic acid yielded highly flexible rubbery materials with glass transition temperatures below room temperature, the more rigid anhydrides of maleic and phthalic acid gave amorphous stiff polyesters with higher glass transition temperatures varying between 43 and 73°C. When the cure reaction was carried out in polypropylene melts, multiphase polymers were formed containing polyester phases dispersed in the continuous polyolefin matrix.
Similar content being viewed by others
References
Gandini A, “Comprehensive Polymer Science”, First Suppl., Pergamon Press, Oxford 1992, p. 527.
Gunstone FD, “Chemistry and Biochemistry of Fatty Acids and Their Glycerides”, Chapman and Hall, London 1967
Solomon DH, “The Chemistry of Organic Film Formers”, Krieger, Huntington, New York 1977
Takahashi K, Hitoshi F, Adv. Polym. Sci. 80, 173 (1986)
Trappe V, Burchard W, Macromolecules 24, 4738 (1991)
Steinmann B, J. Appl. Polym. Sci. 1990, 38.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Rösch, J., Mülhaupt, R. Polymers from renewable resoureces: polyester resins and blends based upon anhydride-cured epoxidized soybean oil. Polymer Bulletin 31, 679–685 (1993). https://doi.org/10.1007/BF00300127
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00300127