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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Results 1-3 of 33
Page 44
... peaks are seen . Table 3 shows how the position of these peaks in the 13C NMR spectra change with added DIP IP . There is a general movement downfield of the averaged shifts of the a peak and upfield of the y peak as the concentration ...
... peaks are seen . Table 3 shows how the position of these peaks in the 13C NMR spectra change with added DIP IP . There is a general movement downfield of the averaged shifts of the a peak and upfield of the y peak as the concentration ...
Page 140
... peak did the majority of the chains form the desired diblock . The amount of premature termination was indicated by the SAMS copolymer peak in the GPC chromatogram of the final polymer . After the diene polymerization , a coupling agent ...
... peak did the majority of the chains form the desired diblock . The amount of premature termination was indicated by the SAMS copolymer peak in the GPC chromatogram of the final polymer . After the diene polymerization , a coupling agent ...
Page 353
... Peak area 40 20 20 40 60 Time ( min . ) -0 80 100 Figure 4 : Peak areas relative to the aromatic peak in B2 vs. time during reaction at 80 ° C of with A2 : SiH , C = CH2 / 2 ,: R'Si ( CH3 ) 2/6 , corresponding to peak A , Fig . 3 ; : in ...
... Peak area 40 20 20 40 60 Time ( min . ) -0 80 100 Figure 4 : Peak areas relative to the aromatic peak in B2 vs. time during reaction at 80 ° C of with A2 : SiH , C = CH2 / 2 ,: R'Si ( CH3 ) 2/6 , corresponding to peak A , Fig . 3 ; : in ...
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 CH₂ 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