Advances in elastomers and rubber elasticity |
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Page 4
Step polymerizations proceed with second-order kinetics 1/[M] = 1/[M]0 + kt (5) or
DP = 1 + [M]Qkt (6) where [M]Q and [M] are the concentrations of X(or Y) groups
at times 0 and t, respectively. A characteristic of the second-order kinetics is that ...
Step polymerizations proceed with second-order kinetics 1/[M] = 1/[M]0 + kt (5) or
DP = 1 + [M]Qkt (6) where [M]Q and [M] are the concentrations of X(or Y) groups
at times 0 and t, respectively. A characteristic of the second-order kinetics is that ...
Page 221
Since esters are rather inert, other groups such as epoxy, halogen and carboxyl
must be incorporated into the polymer to introduce sites for curing. We have
studied the effect of various ammonium and phosphonium salt catalysts on the
rate of ...
Since esters are rather inert, other groups such as epoxy, halogen and carboxyl
must be incorporated into the polymer to introduce sites for curing. We have
studied the effect of various ammonium and phosphonium salt catalysts on the
rate of ...
Page 332
Even in bulk, the reactive groups in a polymerising mixture are diluted by the inert
portions of the chains between the groups. Only in the limit of zero molar masses
of reactants is there zero dilution of reactive groups. Of course, in that limit v is ...
Even in bulk, the reactive groups in a polymerising mixture are diluted by the inert
portions of the chains between the groups. Only in the limit of zero molar masses
of reactants is there zero dilution of reactive groups. Of course, in that limit v is ...
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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 benzene block polymers butadiene calculated catalyst CHDI Chem chemical constant crosslinking crystalline crystallites crystallization curing curves cyclohexane deformation density diene dynamic mechanical effect elongation end block entanglements equation equilibrium experimental fatigue Flory fraction function glass transition temperature groups hard domains hard segment content hard segment length higher hydrogenated hydrosilylation increase initiator intramolecular reaction isoprene Macromolecules measurements mechanical properties melting temperature microstructure modulus molecular weight molecules monodisperse monomer observed obtained oligomers orientation PDMS peak phantom network Phys polybutadiene polyether polyisoprene polymerisations polymerization polystyrene polyurethane-ureas polyurethanes prepared prepolymer PTMO sample SAMS-B-SAMS scattering segment length distribution shown in Figure soft segment solvent spectra strain stress stress-strain stretched structure styrene swollen synthesis Table theory thermal thermoplastic thermoplastic elastomers tion toluene trans triblock copolymer uniaxial values vinyl content