Improvement of mechanical properties and blood compatibility of PLLA nanocomposites by incorporation of polyhedral oligomeric silsesquioxane
DC Field | Value | Language |
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dc.contributor.author | Bach, Quang Vu | - |
dc.contributor.author | Choi, Jiyeon | - |
dc.contributor.author | Joung, Yoon Ki | - |
dc.contributor.author | Park, Bang Ju | - |
dc.contributor.author | Han, Dong Keun | - |
dc.date.available | 2020-02-29T05:44:07Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2012-09 | - |
dc.identifier.issn | 1598-5032 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/16208 | - |
dc.description.abstract | A series of hybrid nanocomposites containing poly(L-lactide) (PLLA) and polyhedral oligomeric silsesquioxane (POSS) was prepared by solvent casting method for the enhancement of the mechanical properties of PLLA. One of them was mixed by only a physical blending between PLLA and POSS to form PLLA/POSS nanocomposite that did not show considerable improvement. In the other hand, two types of PLLA-POSS additives were synthesized via the ring-opening polymerization of L-lactide in the presence of POSS in different content. On these additives, POSS played as not only an initiator for the ring-opening polymerization reaction due to its hydroxyl functional groups on the surface but also a type of hybrid filler for PLLA/PLLA-POSS nanocomposite after mixing with PLLA matrix. PLLA/PLLA-POSS composite showed significant improvement in mechanical properties because of covalent bonding between PLLA and POSS. In particular, the tensile modulus has been apparently increased in PLLA/5PLLA-5POSS nanocomposites (1,449 MPa) with respect to PLLA control (498 MPa). SEM and XRD data indicated that the dispersion of PLLA-modified POSS was better than that of POSS in PLLA matrix. Although the contact angle was not significantly different, the protein adsorption and platelet adhesion are reduced slightly in PLLA/PLLA-POSS nanocomposite as compared to those of PLLA control and PLLA/POSS. Therefore, it is expected that biodegradable POSS nanocomposite may be helpful to be utilized in biomedical devices such as drug-eluting stents and artificial implants. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | POLYMER SOC KOREA | - |
dc.relation.isPartOf | MACROMOLECULAR RESEARCH | - |
dc.subject | THERMAL-PROPERTIES | - |
dc.subject | POSS | - |
dc.subject | BIOCOMPATIBILITY | - |
dc.subject | BIODEGRADATION | - |
dc.subject | COPOLYMERS | - |
dc.subject | POLYMERS | - |
dc.title | Improvement of mechanical properties and blood compatibility of PLLA nanocomposites by incorporation of polyhedral oligomeric silsesquioxane | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000308549600015 | - |
dc.identifier.doi | 10.1007/s13233-012-0196-x | - |
dc.identifier.bibliographicCitation | MACROMOLECULAR RESEARCH, v.20, no.9, pp.996 - 1001 | - |
dc.identifier.kciid | ART001696005 | - |
dc.identifier.scopusid | 2-s2.0-84867209565 | - |
dc.citation.endPage | 1001 | - |
dc.citation.startPage | 996 | - |
dc.citation.title | MACROMOLECULAR RESEARCH | - |
dc.citation.volume | 20 | - |
dc.citation.number | 9 | - |
dc.contributor.affiliatedAuthor | Park, Bang Ju | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | PLLA | - |
dc.subject.keywordAuthor | POSS | - |
dc.subject.keywordAuthor | nanocomposite | - |
dc.subject.keywordAuthor | mechanical property | - |
dc.subject.keywordAuthor | blood compatibility | - |
dc.subject.keywordPlus | THERMAL-PROPERTIES | - |
dc.subject.keywordPlus | POSS | - |
dc.subject.keywordPlus | BIOCOMPATIBILITY | - |
dc.subject.keywordPlus | BIODEGRADATION | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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