Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties.

ABSTRACT: This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers were different in the content of iso-cyanate groups content (ca. 6 and 8%). The process of pre-polymerization and the obtained bio-based prepolymers were analyzed by determining the content of unreacted NCO groups, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, thermogravimetry, and rheological measurements. The research conducted

SUBMITTER: Niesiobedzka J 

PROVIDER: S-EPMC8625470 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature