Overview
- Brings important new insights into the basic research of polyurethanes and their industrial applications
- The special DBDI based PUs covered help scientists understand the role of introducing an enhanced crystallinity to the overall properties of such polyurethanes and of elastomeric materials in general
- Presents break-throughs in understanding at a quantitative level the relation between detailed polyurethane chemical structure and the in-use performance of the PU
- Includes supplementary material: sn.pub/extras
Access this book
Tax calculation will be finalised at checkout
Other ways to access
Table of contents (6 chapters)
Keywords
About this book
A comprehensive account of the physical / mechanical behaviour of polyurethanes (PU´s) elastomers, films and blends of variable crystallinity. Aspects covered include the elasticity and inelasticity of amorphous to crystalline PUs, in relation to their sensitivity to chemical and physical structure. A study is made of how aspects of the constitutive responses of PUs vary with composition: the polyaddition procedure, the hard segment, soft segment and chain extender (diols and diamines) are varied systematically in a large number of systems of model and novel crosslinked andthermoplastic PUs. Results will be related to: microstructural changes, on the basis of evidence from x-ray scattering (SAXS and WAXS), and also dynamic mechanical analyses (DMA), differential scanning calorimetry (DSC) and IR dichroism. Inelastic effects will be investigated also by including quantitative correlations between the magnitude of the Mullins effect and the fractional energy dissipation by hysteresis under cyclic straining, giving common relations approached by all the materials studied. A major structural feature explored is the relationship between the nature of the hard segment (crystallising or not) and that of the soft segments. Crystallinity has been sometimes observed in the commercial PUs hard phase but this is usually limited to only a few percent for most hard segment structures when solidified from the melt. One particular diisocyanate, 4,4’-dibenzyl diisocyanate (DBDI) that, in the presence of suitable chain extenders ( diols or diamines), gives rise to significant degrees of crystallinity [i-iii] and this is included in the present work. Understanding the reaction pathways involved, in resolving the subtle morphological evolution at the nanometre level, and capturing mathematically the complex, large-deformation nonlinear viscoelastic mechanical behaviour areassumed to bring new important insights in the world basic research in polyurethanes and towards applied industrial research in this area.
Reviews
Jiri G. Drobny, President
Drobny Polymer Associates
Merrimack, NH USA
The book is written by a true expert on the subject. It is not only a review of the state of the art but also a collection of new contributions in some specialized areas. The size of the publication is only 250 pages but it is amazing how much it covers: chemistry, structural studies, thermal behavior, mechanical aspects, morphology, new developments, and perspectives. The treatment of the subject is thorough and systematic, yet the text is clearly written and the style is readable. Given that, the book will be a very useful resource for a wide range of readers, from advanced students to university educators and scientists working in the field of polyurethane elastomers.
Authors and Affiliations
Bibliographic Information
Book Title: Polyurethane Elastomers
Book Subtitle: From Morphology to Mechanical Aspects
Authors: Cristina Prisacariu
DOI: https://doi.org/10.1007/978-3-7091-0514-6
Publisher: Springer Vienna
eBook Packages: Chemistry and Materials Science, Chemistry and Material Science (R0)
Copyright Information: Springer-Verlag/Wien 2011
Hardcover ISBN: 978-3-7091-0513-9Published: 03 July 2011
Softcover ISBN: 978-3-7091-1694-4Published: 12 October 2014
eBook ISBN: 978-3-7091-0514-6Published: 03 July 2011
Edition Number: 1
Number of Pages: XXIV, 255
Topics: Polymer Sciences, Crystallography and Scattering Methods, Characterization and Evaluation of Materials