Block copolymerization of isoprene and butadiene under the effect of a catalyst based on neodymium trichloride
Journal Article
·
· Dokl. Phys. Chem. (Engl. Transl.); (United States)
OSTI ID:5571938
The authors assess the catalytic activity of neodymium trichloride in the block copolymerization of isoprene and butadiene by using a monomer catalyst ratio of 500-1000 in solvents of hexane and benzene. Molecular weight measurements and gel permeation chromatography were used to monitor the kinetics as well as the yields of the reactions. Two variants of the experiments were conducted. Either butadiene was added to the system after termination of isoprene polymerization or vice versa. The first variant was found to be more conducive to a quantitative estimation of the catalyst efficiency and is therefore used in the mathematical formulation of the process.
- Research Organization:
- S. V. Lebedev All-Union Scientific-Research Institute of Synthetic Rubber, Leningrad, USSR
- OSTI ID:
- 5571938
- Journal Information:
- Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 293:1-3; ISSN DKPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BUTADIENE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMATOGRAPHY
COPOLYMERIZATION
COPOLYMERS
DIENES
GEL PERMEATION CHROMATOGRAPHY
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
ISOPRENE
KINETICS
MATERIALS TESTING
MATHEMATICAL MODELS
MOLECULAR WEIGHT
NEODYMIUM CHLORIDES
NEODYMIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYENES
POLYMERIZATION
POLYMERS
QUANTITY RATIO
RARE EARTH COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
TESTING
400201* -- Chemical & Physicochemical Properties
BUTADIENE
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
CHROMATOGRAPHY
COPOLYMERIZATION
COPOLYMERS
DIENES
GEL PERMEATION CHROMATOGRAPHY
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
ISOPRENE
KINETICS
MATERIALS TESTING
MATHEMATICAL MODELS
MOLECULAR WEIGHT
NEODYMIUM CHLORIDES
NEODYMIUM COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYENES
POLYMERIZATION
POLYMERS
QUANTITY RATIO
RARE EARTH COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
TESTING