Influence of chain extension agents on the properties of polyether-based urethane elastomers at elevated temperatures

Previous work has shown that whilst the excellent physical and mechanical properties of polyurethane elastomers can be varied by changes in the molecular structure of their constituent units, these advantages are considerably diminished at elevated temperatures. The present work was carried out to investigate the effect of hard segment chemical structure on the properties of a polyether based polyurethane elastomer, particularly at elevated temperature. [Continues.]