Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김성훈 | - |
dc.date.accessioned | 2021-03-26T02:10:06Z | - |
dc.date.available | 2021-03-26T02:10:06Z | - |
dc.date.issued | 2020-01 | - |
dc.identifier.citation | POLYMERS, v. 12, no. 1, article no. 178 | en_US |
dc.identifier.issn | 2073-4360 | - |
dc.identifier.uri | https://www.mdpi.com/2073-4360/12/1/178 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/160884 | - |
dc.description.abstract | Effective surface alkylation of cellulose nanocrystals (CNCs) was developed using a nucleophilic substitution reaction with an alkyl bromide to convert hydrophilic groups on the CNCs into alkyl groups and the degree of substitution was quantitatively determined. The resultant alkylated CNCs exhibited improved dispersion in a nonpolar environment and increased hydrophobicity, compared with unmodified and acetylated CNCs. Polylactide (PLA) nanocomposites reinforced with unmodified and modified CNCs were prepared by a solution casting method and the effects of reinforcement on the thermal stability, mechanical properties, morphology, and barrier properties were investigated. In addition, modeling of the mechanical properties was evaluated to simulate the modulus of the PLA nanocomposites and results were compared with the experimental values. PLA nanocomposites reinforced with alkylated CNCs exhibited superior properties in terms of thermal stability, tensile strength, Young's modulus, and barrier properties because of the uniform dispersion and strong interfacial adhesion between filler and matrix. This high performance and fully return-to-nature nanocomposite is expected to expand the utilization of CNCs from sustainable bioresources and the practical application of biodegradable plastics. | en_US |
dc.description.sponsorship | This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1A6A1A03013422 and 2019R1F1A1062528). | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.subject | cellulose nanocrystals | en_US |
dc.subject | surface modification | en_US |
dc.subject | polylactide | en_US |
dc.subject | nanocomposites | en_US |
dc.title | Surface Alkylation of Cellulose Nanocrystals to Enhance Their Compatibility with Polylactide | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 12 | - |
dc.identifier.doi | 10.3390/polym12010178 | - |
dc.relation.page | 1-16 | - |
dc.relation.journal | POLYMERS | - |
dc.contributor.googleauthor | Lee, Joo Hyung | - |
dc.contributor.googleauthor | Park, Sang Ho | - |
dc.contributor.googleauthor | Kim, Seong Hun | - |
dc.relation.code | 2020051252 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF ORGANIC AND NANO ENGINEERING | - |
dc.identifier.pid | kimsh | - |
dc.identifier.researcherID | AAQ-1582-2020 | - |
dc.identifier.orcid | https://orcid.org/0000-0003-0401-6643 | - |
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