Polyurethanes made with hydrogenated polydiene diols and polyether diols
- Technology Benefits
- Robust oxidative and hydrolytic stability Low-cost manufacturing Commercially available precursors (as compared with PIB-TPU) Comparable mechanical properties (as compared with PIB-TPU)
- Detailed Technology Description
- Polyether based thermoplastic polyurethanes (TPUs) have been widely used in biomedical applications due to a broad range of physical properties. However, these polymers are highly susceptible to oxida
- *Abstract
-
Polyether based thermoplastic polyurethanes (TPUs) have been widely used in biomedical applications due to a broad range of physical properties. However, these polymers are highly susceptible to oxidative degradation leading to a deterioration of mechanical properties. Recently introduced polyisobutylene (PIB) based TPUs (PIB-TPU) exhibit excellent oxidative and hydrolytic stability, however, the precursor polyisobutylene diol is not available commercially. Generally, TPUs based on nonpolar soft segments possess lower tensile strength and toughness due to premature phase separation, especially in bulk synthesis, leading to compositional heterogeneity.
- *Background
- Polyether based thermoplastic polyurethanes (TPUs) have been widely used in biomedical applications due to a broad range of physical properties. However, these polymers are highly susceptible to oxidative degradation leading to a deterioration of mechanical properties. Recently introduced polyisobutylene (PIB) based TPUs (PIB-TPU) exhibit excellent oxidative and hydrolytic stability, however, the precursor polyisobutylene diol is not available commercially. Generally, TPUs based on nonpolar soft segments possess lower tensile strength and toughness due to premature phase separation, especially in bulk synthesis, leading to compositional heterogeneity.
- Country/Region
- USA
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