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X-ray investigations concerning the physical structure of cross-linking in segmented urethane elastomers
Authors:R Bonart
Institution:Engineering Department for Applied Physics , Farbenfabriken Bayer AG Leverkusen , West Germany
Abstract:In the X-ray diagrams of some segmented urethane elastomers, so-called hard-segment interferences can be observed which indicate a defined geometrical accumulation of the hard segments. These interferences can easily be traced back to a system of hydrogen bridges between the hard segments. They allow an insight into the geometrical structure of the cross-linking as well as into the mechanism of elongation and thermosetting.
Keywords:Block copolymer  Deformation  Heavy water  Quadrupolar NMR  Swelling  Thermoplastic elastomer
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