Kinetic isotope effect of low-temperature reactions of carbenes in solid polymers
Journal Article
·
· Dokl. Phys. Chem. (Engl. Transl.); (United States)
OSTI ID:7004392
The kinetics of dark quenching of diphenylcarbene (DPC) and 2,6-di-tert-butylcyclohexadiene carbene (CHC) in polymethyl methacrylate (PMMA) and polystyrene (PS) with protonated and totally deuterated units were studied to determine the mechanism of the reactions of carbenes in the polymer matrix. A comparison of the kinetic data on quenching of DPC and CHC in proton- and deuterium-containing polymers indicates the complex dependence of the kinetic isotope effect on both the temperature and the degree of conversion.
- Research Organization:
- D. I. Mendeleev Moscow Chemical Technology Institute (USSR)
- OSTI ID:
- 7004392
- Journal Information:
- Dokl. Phys. Chem. (Engl. Transl.); (United States), Journal Name: Dokl. Phys. Chem. (Engl. Transl.); (United States) Vol. 291:1-3; ISSN DKPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ANGULAR MOMENTUM
CARBENES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DE-EXCITATION
DEUTERATION
DEUTERIUM
DEUTERIUM COMPOUNDS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ESTERS
EXCITED STATES
GROUND STATES
HYDROGEN 1
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MATERIALS
MATHEMATICAL MODELS
MULTIPLETS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE PROPERTIES
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PMMA
POLYACRYLATES
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
RADICALS
REACTION KINETICS
SPIN
STABLE ISOTOPES
SYNTHETIC MATERIALS
TEMPERATURE DEPENDENCE
TRIPLETS
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ANGULAR MOMENTUM
CARBENES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DE-EXCITATION
DEUTERATION
DEUTERIUM
DEUTERIUM COMPOUNDS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
ESTERS
EXCITED STATES
GROUND STATES
HYDROGEN 1
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROGEN TRANSFER
ISOTOPE EFFECTS
ISOTOPES
ISOTOPIC EXCHANGE
KINETICS
LIGHT NUCLEI
MATERIALS
MATHEMATICAL MODELS
MULTIPLETS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE PROPERTIES
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PMMA
POLYACRYLATES
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
RADICALS
REACTION KINETICS
SPIN
STABLE ISOTOPES
SYNTHETIC MATERIALS
TEMPERATURE DEPENDENCE
TRIPLETS