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dc.contributor.authorChiu, Yu-Jingen_US
dc.contributor.authorTseng, Hsiao-Fanen_US
dc.contributor.authorLo, Yu-Chingen_US
dc.contributor.authorWu, Bo-Haoen_US
dc.contributor.authorChen, Jiun-Taien_US
dc.date.accessioned2018-08-21T05:53:01Z-
dc.date.available2018-08-21T05:53:01Z-
dc.date.issued2017-11-28en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://dx.doi.org/10.1021/acs.macromol.7b01916en_US
dc.identifier.urihttp://hdl.handle.net/11536/144170-
dc.description.abstractElectrospun polymer core shell fibers have gained much attention because of their promising applications in areas such as electronic devices, drug delivery, and tissue engineering. The morphology transformation of polymer core shell fibers, however, has been rarely investigated. Here, we study the effect of thermal annealing on the morphology transformation of electrospun polystyrene (PS)/poly(methyl methacrylate) (PMMA) core-shell fibers on PMMA. films. Two types of transformation processes are discovered. In the first type of the transformation process (type I), the PS cores transform to hemispherical particles after the annealing process; in the second type of the transformation process (type II), the PS cores transform to spherical particles after the annealing process. The measured sizes of the hemispherical and spherical PS domains fall into two classified regions, as predicted for the two different types of transformation processes. It is also observed that the growth rates of the undulated amplitude are similar for the two different types of transformation processes, but the type I fibers start to undulate at later annealing times than the type II fibers do. When the PS particles are selectively removed, the PMMA films with linearly arranged cavities are used for the tearing experiments, demonstrating a proof of concept on the potentials in studying the mechanical properties of cavity-containing films.en_US
dc.language.isoen_USen_US
dc.titleFrom Electrospun Polymer Core-Shell Fibers to Polymer Hemispheres and Spheres: Two Types of Transformation Processes and Tearing Films with Linearly Arranged Cavitiesen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acs.macromol.7b01916en_US
dc.identifier.journalMACROMOLECULESen_US
dc.citation.volume50en_US
dc.citation.spage9024en_US
dc.citation.epage9031en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000416877500017en_US
Appears in Collections:Articles