Abstract
Poly(urethane-urea-imide) (PUUI) block copolymers were prepared from different types of amine-terminated polyurethane oligomers with benzophenonetetracarboxylic dianhydride. PUUIs consisted of two types of segments, the soft segments with the repeating unit of poly(tetramethyleneoxide) (PTMO) and the hard segments composed of urethane, urea, and imide groups. Characterization of PUUIs was carried out by IR spectroscopy, solution viscosity, thermal analysis, and stress-strain properties. It was found that these block copolymers have considerable better thermal stability and tensile properties than typical linear polyurethanes (PU).
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Al-Salah, H. Synthesis and Properties of Poly(urethane-urea-imide) Block Copolymers. Polym J 23, 815–821 (1991). https://doi.org/10.1295/polymj.23.815
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DOI: https://doi.org/10.1295/polymj.23.815
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