Synthesis and Characterization of Polymers Derived from the Copolymerization of 1,1′-dihydroxyethyl-2,2′-biimidazole and the Diglycidyl Ether of Bisphenol A

Author

Weichen Chi
Harvest L. Collier, Missouri University of Science and TechnologyFollow

Abstract

1,1′-Dihydroxyethyl-2,2′-biimidazole has been used as a copolymerizing monomer with the diglycidyl ether of bisphenol A in the preparation of biimidazole-containing epoxy polymers. Polymerization reactions were studied in bulk, with and without catalyst, and in N,N-dimethylformamide and anisole solvents, with and without catalyst. FT-IR and NMR spectra, molecular weight, thermal and solubility characteristics were obtained. Polymers isolated as amorphous light brown solids were found to be only sparingly soluble in THF or in highly polar nitrogen-containing solvents (DMF, NMP, pyridine). These materials exhibited molecular weights up to 37,000 for SnC1₄-catalyzed polymerization carried out in DMF. A glass-transition temperature of 391°C was observed for polymers obtained under uncatalyzed solventless conditions. The glass transition temperature was 373°C for product obtained under SnC1₄-catalyzed, solventless conditions. Thermogravimetric analysis in air of polymers obtained under varying solvent and catalyst conditions showed less than 25% weight loss below 330°C and greater than 75% weight loss above 400°C.

Recommended Citation

W. Chi and H. L. Collier, "Synthesis and Characterization of Polymers Derived from the Copolymerization of 1,1′-dihydroxyethyl-2,2′-biimidazole and the Diglycidyl Ether of Bisphenol A," Journal of Macromolecular Science Part A Chemistry, Taylor & Francis, Jan 1988.

The definitive version is available at https://doi.org/10.1080/10601328808055087

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1988 Taylor & Francis, All rights reserved.

Publication Date

01 Jan 1988