Publication:
Poly(propylene imine) dendrimers as hydrogen donor in Type II photoinitiated free radical polymerization

dc.contributor.coauthorTasdelen, M. Atilla
dc.contributor.coauthorYagci, Yusuf
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorDemirel, Adem Levent
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T23:26:05Z
dc.date.issued2007
dc.description.abstractThree generations of poly(propylene imine) dendrimers, namely (PPI-16, PPI-32 and PPI-64; 16, 32 and 64 for generations 3, 4 and 5, respectively) were used as hydrogen donors in photoinitiated free radical polymerization of methyl methacrylate by using one of the following photosensitizers; benzophenone and thioxanthone. The effect of generation number of the dendrimer on photoinitiation efficiency and molecular weight of the resulting polymers was investigated. Glass transition temperatures and particle size measurements of the resulting polymers indicated the presence of nearly stretched polymer chains around the dendrimers. The location of hydrogen donating sites was evaluated by photolysis studies in the absence of monomer by using a stable radical namely, 2,2,6,6-tetramethylpiperidine-N-oxyl free radical (TEMPO) and showed that hydrogen abstraction occurs from the inner tertiary amino groups. The TEMPO attached dendrimers were further used in the nitroxide mediated radical polymerization (NMP) of styrene to yield star polymers. (C) 2007 Elsevier Ltd. All rights reserved.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue10
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume43
dc.identifier.doi10.1016/j.eurpolymj.2007.05.042
dc.identifier.eissn1873-1945
dc.identifier.issn0014-3057
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-34848829168
dc.identifier.urihttps://doi.org/10.1016/j.eurpolymj.2007.05.042
dc.identifier.urihttps://hdl.handle.net/20.500.14288/11482
dc.identifier.wos250386600036
dc.keywordsPhotopolymerization
dc.keywordsFree radical polymerization
dc.keywordsPoly(Propylene İmine) dendrimers
dc.keywordsMethyl methacrylate
dc.keywordsDendrimer-star polymers dendrıtıc macrophotoinitiator
dc.keywordsPhysical-properties
dc.keywordsBlock-copolymers
dc.keywordsCross-linking
dc.keywordsBenzophenone
dc.keywordsThioxanthone
dc.keywordsWater
dc.keywordsSystems
dc.keywordsAcid
dc.language.isoeng
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofEuropean Polymer Journal
dc.subjectPolymer science
dc.titlePoly(propylene imine) dendrimers as hydrogen donor in Type II photoinitiated free radical polymerization
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorDemirel, Adem Levent
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
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