Publication:
Structure-property behavior of segmented polyurethaneurea copolymers based on an ethylene-butylene soft segment

dc.contributor.coauthorKlinedinst, DB
dc.contributor.coauthorBeyer, FL
dc.contributor.coauthorWilkes, GL
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorYılgör, Emel
dc.contributor.kuauthorYılgör, İskender
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T23:51:20Z
dc.date.issued2005
dc.description.abstractNovel segmented polyurethaneurea copolymers were synthesized using a poly(ethylene-butylene) glycol based soft segment and either hydrogenated diphenyl methane diisocyanate (HMDI) or hexamethylene diisocyanate (HDI) in addition to either ethylene diamine (EDA) or 2-methyl-1,5-diaminopentane (DY) as the chain extender. Dynamic mechanical analysis (DMA), small angle X-ray scattering (SAXS) and in some cases atomic force microscopy (AFM) established the presence of a microphase-separated structure in which hard microdomains are dispersed throughout a soft segment matrix. Wide angle X-ray scattering (WAXS) and differential scanning calorimetry (DSC) imply that the materials are amorphous. Samples that are made with HMDI/DY and have hard segment contents in the range of 16-23 wt% surprisingly exhibit near-linear mechanical deformation behavior in excess of 600% elongation. They also show very high levels of recoverability even though their hysteresis is also considerable. The materials have all proven to be melt processable in addition to solution processable.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue23
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume46
dc.identifier.doi10.1016/j.polymer.2005.07.065
dc.identifier.eissn1873-2291
dc.identifier.issn0032-3861
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-26844518426
dc.identifier.urihttps://doi.org/10.1016/j.polymer.2005.07.065
dc.identifier.urihttps://hdl.handle.net/20.500.14288/14671
dc.identifier.wos232893700074
dc.keywordsPolyurethaneurea
dc.keywordsMorphology
dc.keywordsProperties Block-copolymers
dc.keywordsMorphology
dc.keywordsPhase
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.relation.ispartofPolymer
dc.subjectPolymers
dc.subjectPolymerization
dc.titleStructure-property behavior of segmented polyurethaneurea copolymers based on an ethylene-butylene soft segment
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorYılgör, Emel
local.contributor.kuauthorYılgör, İskender
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
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