Please use this identifier to cite or link to this item: https://doi.org/10.1021/jp905820h
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dc.titleEffect of molecular orientation on mechanical property of single electrospun fiber of poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate]
dc.contributor.authorChan, K.H.K.
dc.contributor.authorWong, S.Y.
dc.contributor.authorLi, X.
dc.contributor.authorZhang, Y.Z.
dc.contributor.authorLim, P.C.
dc.contributor.authorLim, C.T.
dc.contributor.authorKotaki, M.
dc.contributor.authorHe, C.B.
dc.date.accessioned2014-04-24T09:32:42Z
dc.date.available2014-04-24T09:32:42Z
dc.date.issued2009-10-08
dc.identifier.citationChan, K.H.K., Wong, S.Y., Li, X., Zhang, Y.Z., Lim, P.C., Lim, C.T., Kotaki, M., He, C.B. (2009-10-08). Effect of molecular orientation on mechanical property of single electrospun fiber of poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate]. Journal of Physical Chemistry B 113 (40) : 13179-13185. ScholarBank@NUS Repository. https://doi.org/10.1021/jp905820h
dc.identifier.issn15206106
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/51383
dc.description.abstractElectrospun poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate] (PHBV) fibers were collected by using a counter electrode collector or a rotating disk collector. The molecular orientation and mechanical property of single PHBV fiber were studied. 2-D wide-angle X-ray diffraction and polarized Fourier transform infrared spectra of the macroscopically aligned fibers confirmed the orientation of polymer chains, with PHBV chains preferentially oriented along the fiber axis. The degree of orientation increased with increasing fiber take-up velocity. X-ray diffraction pattern also indicates the development of β-form crystal in electrospun PHBV fibers collected at an angular velocity of 1500 rpm. The thermal behavior of electrospun PHBV fibers was studied using modulated differential scanning calorimetry. The tensile properties of single electrospun PHBV fibers were studied using a nanotensile tester. Our results indicate that electrospun PHBV fiber with a higher degree of molecular orientation exhibits a higher tensile modulus and strength but lower strain at break. © 2009 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/jp905820h
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentBIOENGINEERING
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1021/jp905820h
dc.description.sourcetitleJournal of Physical Chemistry B
dc.description.volume113
dc.description.issue40
dc.description.page13179-13185
dc.description.codenJPCBF
dc.identifier.isiut000270363500008
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