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dc.contributor.author김성훈-
dc.date.accessioned2017-01-31T08:14:42Z-
dc.date.available2017-01-31T08:14:42Z-
dc.date.issued2015-06-
dc.identifier.citationPOLYMER INTERNATIONAL, v. 64, NO 6, Page. 821-827en_US
dc.identifier.issn0959-8103-
dc.identifier.issn1097-0126-
dc.identifier.urihttp://onlinelibrary.wiley.com/doi/10.1002/pi.4858/full-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/25307-
dc.description.abstractNanocellulose tends to be aggregated due to the hydrogen bonding between three of the hydroxyl groups in each repeat unit, resulting in poor dispersion in non-polar polymer matrices. In this research, to improve the dispersion of cellulose particles in a polymer matrix, a long hydrophobic alkyl chain was substituted for hydrogen in the hydroxyl group of cellulose via a bimolecular nucleophilic substitution (S(N)2) reaction with alkyl bromide. Octyl (C8H17) and dodecyl (C12H25) groups were applied in this reaction, which is faster and simpler than other substitution reactions. The chemical structures of octyl and dodecyl ether cellulose were identified using Fourier transform infrared and NMR analyses. The contact angle with water and methylene iodide was measured to calculate the surface energy of alkyl nanocellulose. The surface energy was decreased by the substituted alkyl chain. The thermal properties, morphology and crystal structure of octyl and dodecyl ether cellulose were also investigated to determine the possibility of use as a reinforcement. Furthermore, polylactide/alkyl ether cellulose composites were prepared to make certain of sufficient dispersion of the alkyl ether cellulose in the polylactide matrix. The thermal and mechanical properties of the polylactide composite films were investigated. The optical transmittance of the polylactide composites was measured to confirm the relative dispersity. (c) 2014 Society of Chemical Industryen_US
dc.description.sponsorshipThis research was supported by the National Research Foundation of Korea and the Korea Ministry of Environment (Project No. NRF-2011-0011515 and No. 2013001470001).en_US
dc.language.isoenen_US
dc.publisherWILEY-BLACKWELLen_US
dc.subjectnanocelluloseen_US
dc.subjectalkylationen_US
dc.subjectalkyl ether celluloseen_US
dc.subjectbiocompositeen_US
dc.subjectpolylactideen_US
dc.titleAlkylation of mixed micro- and nanocellulose to improve dispersion in polylactideen_US
dc.typeArticleen_US
dc.relation.no6-
dc.relation.volume64-
dc.identifier.doi10.1002/pi.4858-
dc.relation.page821-827-
dc.relation.journalPOLYMER INTERNATIONAL-
dc.contributor.googleauthorBae, Jong Hyuk-
dc.contributor.googleauthorKim, Seong Hun-
dc.relation.code2015002047-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ORGANIC AND NANO ENGINEERING-
dc.identifier.pidkimsh-
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COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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