Search results for "Catalytic chain transfer"

showing 2 items of 2 documents

Primary radical termination and chain transfer in vinyl polymerization

1974

Living free-radical polymerizationCobalt-mediated radical polymerizationCatalytic chain transferChemistryRadical polymerizationPolymer chemistryGeneral EngineeringLiving polymerizationChain transferReversible addition−fragmentation chain-transfer polymerizationChain terminationJournal of Polymer Science: Polymer Physics Edition
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Evidence for chain transfer in the atom transfer radical polymerization of butyl acrylate

2000

Poly(butyl acrylate) (PBuA) of high molecular weight was synthesized by atom transfer radical polymerization (ATRP) in ethyl acetate. Whereas for low molecular weight polymers, a linear increase of the number-average molecular weight. M n , versus conversion and narrow molecular weight distributions indicate the suppression of side reactions, a downward curvature in the plot of M n versus conversion was observed for high molecular weights (M n > 50 000). This effect is explained by chain transfer reactions, leading to branched polymers. GPC measurements with a viscosity detector give evidence for the branched structure of high molecular weight polymers obtained in ATRP. In addition, transfe…

chemistry.chemical_classificationPolymers and PlasticsAtom-transfer radical-polymerizationButyl acrylateOrganic ChemistryRadical polymerizationChain transferSolution polymerizationPolymerchemistry.chemical_compoundMonomerchemistryCatalytic chain transferPolymer chemistryMaterials ChemistryMacromolecular Rapid Communications
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