Advances in Elastomers and Rubber ElasticityJoginder Lal, James E. Mark The present book is a sequel to "Elastomers and Rubber Elasticity," edited by J.E. Mark and J. Lal and published by the American Chemical Society in 1982. It is also based on papers presented at an ACS Symposium, sponsored by the Division of Polymer Chemistry, Inc., in this case one held in Chicago in September of 1985. The keynote speaker was to have been Pro fessor Paul J. Flory, and his untimely death just prior to the symposium was a tremendous loss to all of polymer science, in particular to those in terested in elastomeric materials. It is to his memory that this book is dedicated. There has been a great deal of progress in preparing and studying elas tomers since the preceding symposium, which was in 1981. In the case of the synthesis and curing of elastomers, much of the background necessary to an appreciation of these advances is given in the first, introductory chapter. |
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Page 119
... compared to those of copolymers with lower soft segment molecular weight . This indicates that the mixing of the hard and soft segments is minimal when higher molecular weight polyethers are employed and that the Tg value can also be ...
... compared to those of copolymers with lower soft segment molecular weight . This indicates that the mixing of the hard and soft segments is minimal when higher molecular weight polyethers are employed and that the Tg value can also be ...
Page 124
... compared to another sample B which may have higher interfacial thickness but the fraction of the interfacial region is small . Sample B , in such a case , would show a better overall degree of phase separation as compared to sample A ...
... compared to another sample B which may have higher interfacial thickness but the fraction of the interfacial region is small . Sample B , in such a case , would show a better overall degree of phase separation as compared to sample A ...
Page 153
... compared to polystyrene blocks . Another factor is that this polystyrene triblock copolymer has volume fractions of the two blocks which optimize physical properties.8 Therefore , added poly- styrene does not enhance these properties ...
... compared to polystyrene blocks . Another factor is that this polystyrene triblock copolymer has volume fractions of the two blocks which optimize physical properties.8 Therefore , added poly- styrene does not enhance these properties ...
Contents
Introduction to Synthesis of Elastomers | 1 |
Structure and Properties of Tire Rubbers Prepared | 17 |
Polymer and Chain End Structure in Anionic Diene | 37 |
Copyright | |
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affine anionic antioxidant behavior block polymers butadiene calculated catalyst CHâ‚‚ chain end CHDI Chem chemical crosslinking crystalline crystallites crystallization curing curves cyclohexane deformation density diene dynamic mechanical effect elongation end block entanglements equation equilibrium experimental fatigue formation fraction function glass transition temperature groups hard segment content hard segment length higher hydrogenated hydrosilylation increase initiator intramolecular reaction isoprene Macromolecules measurements melting temperature microstructure modulus molecular weight molecules monodisperse monomer observed obtained oligomers orientation P.J. Flory PDMS peak phantom network phase Phys polybutadiene polyether polyisoprene polymerization polystyrene polyurethane-ureas polyurethanes prepared prepolymer PTMO sample scattering segment length distribution shown in Figure soft segment solvent spectra strain stress stress-strain structure styrene swollen synthesis Table theory thermal thermoplastic thermoplastic elastomers tion toluene trans triblock copolymer uniaxial values vinyl content viscoelastic vulcanizates