Kinetic study of acrylamide photopolymerization in the presence of silver salt
作者： Ignác Capek
DOI: 10.1007/S00289-017-1973-7
关键词: Chain transfer 、 Materials science 、 Acrylamide 、 Polymer 、 Photopolymer 、 Photochemistry 、 Photoinitiator 、 Radical 、 Silver nanoparticle 、 Polymerization
摘要: The solution polymerizations of acrylamide (AAm) initiated by the photoinitiator DAROCUR 2959 (DAR) and UV light were studied. kinetics polymerization in presence silver salt was investigated. Dilatometry implemented to follow continuously fast photopolymerization. rate vs conversion curve photopolymerization AAm described two nonstationary-state intervals. abrupt increase initial attributed accumulation reaction loci. continuous decrease with discussed terms increased termination based on intra- intermolecular chain transfer polymer. deactivation excited states initiator initiating radicals their interaction products (silver nanoparticle–polymer nanocomposites) is also taken into account. irradiation led formation silver–polymer nanocomposites. small nanoparticles grow during photolysis (or storing) microparticles large agglomerates.
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