Role of percent grafting and chain length of fully fluorinated pendant units in the grafted acrylic compound on crucial characteristic properties of high density polyethylene

dc.authorid0000-0002-9244-026Xen_US
dc.contributor.authorSoykan, Uğur
dc.date.accessioned2021-06-23T19:54:02Z
dc.date.available2021-06-23T19:54:02Z
dc.date.issued2020
dc.departmentBAİBÜ, Yeniçağa Yaşar Çelik Meslek Yüksekokulu, Gıda İşleme Bölümüen_US
dc.description.abstractThis comprehensive study paves way to investigate the effects of not only the extent of grafting but also the chain length of the perfluorinated pendant tail presenting in the three different fluoroalkyl acrylate monomers on the significant characteristic properties; namely the thermal behavior, crystal structure quality, mechanical performance and morphological structure of high density polyethylene (HDPE). The individual graft copolymerizations of the monomer onto HDPE were conducted at the content level from 5 % to 30 % via bulk-melt polymerization. The characterizations of copolymers were performed with differential scanning calorimeter (DSC), powder X-ray diffractometer, universal testing machine and scanning electron microscope (SEM) techniques. As for the results deduced from DSC analysis, both the melting temperatures of HDPE and degree of crystallinity were found to increase systematically with the enhancement in the percent grafting level up to 10 % beyond which the parameters were noted to decrease drastically and reach towards globally minimum values. According to the XRD results, as the percentage of grafting enhanced, the remarkable expansions were observed in unit cell parameters of HDPE crystallized in the orthorhombic symmetry. Moreover, the presence of relatively higher amount of -CF2 groups in the perfluorinated pendant tail caused the formation of three-dimensional lateral repulsions due to its helix structure. Furthermore, there seemed to remarkably improve in the mechanical performance features in case of percent grafting level of 70.6 % where the tensile strength, Modulus and impact strength parameters were measured to be about 42.51 MPa, 539.90 MPa and 41.11 kj/m(2), respectively. These reinforcements were found to be explained by the improvement in the regulation, orientations, alignments of HDPE chains. Furthermore, the formation of thick, bulky and long-fibrils were observed at high percent grafting.en_US
dc.identifier.doi10.1016/j.jfluchem.2020.109591
dc.identifier.issn0022-1139
dc.identifier.issn1873-3328
dc.identifier.scopus2-s2.0-85087061043en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1016/j.jfluchem.2020.109591
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10386
dc.identifier.volume236en_US
dc.identifier.wosWOS:000551145100017en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSoykan, Uğur
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal Of Fluorine Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPercent Graftingen_US
dc.subjectChain Lengthen_US
dc.subjectPerfluorinated Pendant Tailen_US
dc.subjectUnit Cell Parametersen_US
dc.subjectMechanical Improvementsen_US
dc.subjectFibrilen_US
dc.titleRole of percent grafting and chain length of fully fluorinated pendant units in the grafted acrylic compound on crucial characteristic properties of high density polyethyleneen_US
dc.typeArticleen_US

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