From classical to living/controlled statistical free-radical copolymerization
Autor: | Enrique López Madruga |
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Rok vydání: | 2002 |
Předmět: |
Polymers and Plastics
Organic Chemistry Chain transfer Surfaces and Interfaces Photochemistry chemistry.chemical_compound Monomer chemistry Polymerization Catalytic chain transfer Materials Chemistry Ceramics and Composites Copolymer Physical chemistry Reactivity (chemistry) Solvent effects Glass transition |
Zdroj: | Progress in Polymer Science. 27:1879-1924 |
ISSN: | 0079-6700 |
DOI: | 10.1016/s0079-6700(02)00023-0 |
Popis: | Solvent effects on monomer reactivity ratio values along with the determination of radical reactivity ratios, their possible origins as well as their importance in conventional free-radical copolymerization is described first. Predictions from data obtained at low conversion of cumulative composition and stereochemical distribution in copolymer chain along with glass transition temperature and the lumped overall copolymerization parameter k p / k t 1/2 at high conversion are described. Transfer reactions in free-radical copolymerization using classical chain transfer agent as well as the new catalytic chain transfer agent and the effect on the copolymer structure and properties are also studied. Finally the new living/controlled free-radical polymerization process and the preparation of well-controlled statistical copolymers are described to stand out the subtle mechanisms differences between living/controlled and conventional free-radical copolymerization. |
Databáze: | OpenAIRE |
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