Die Makromolekulare Chemie · 1967 · 11 citations · 5 references
Natural SciencesChemistryPhysicsOrganic ChemistryPolymer ChemistryPolymer MaterialsPolymer CharacterizationPolymer Physical ChemistryPolymer PhysicsPolymerization ChemistryPolymerization ProcessesPolymerization Temperature EffectsControlled PolymerizationHigh-temperature PolymersPolymerization Mechanism AnalysisPolymerization MechanismsPolymerization ThermodynamicsPolymethyl MethacrylateTemperature DependenceTemperature Dependence Of Polymerization
Abstract The explicit temperature dependence of a quantity, which is a formula for testing the reality of the penultimate effect in a symmetric polymerization is obtained as for an asymmetric polymerization with two conditional probabilities P LD and P LD Two similar formulae for Δε, are also obtained for testing the reality of the prepenultimate effect. As an exaniple, it is shown that the polymerization of methyl methacrylate with Et 2 AlNPh 2 in toluene is controlled by syndiotactic prepenultimate units.
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