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dc.contributor.authorWu, HDen_US
dc.contributor.authorTseng, CRen_US
dc.contributor.authorChang, FCen_US
dc.date.accessioned2014-12-08T15:43:56Z-
dc.date.available2014-12-08T15:43:56Z-
dc.date.issued2001-04-24en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://dx.doi.org/10.1021/ma991897ren_US
dc.identifier.urihttp://hdl.handle.net/11536/29703-
dc.description.abstractAnalyses of the effects of montmorillonite (clay) on the chain conformation and crystallization of syndiotactic polystyrene (s-PS) thin films are investigated using FTIR spectroscopy, X-ray diffraction, and TEM. The clay is dispersed into the s-PS matrix using a solution blending with scale in 1-2 nm or in a few tenths to 100 nm, depending on whether a surfactant is added or not. Upon adding clay, the chain conformation of s-PS tends to convert to TTTT from rTTGG after drying because the highly dispersed clay overcomes the energy barrier of chain conformation transformation. This phenomenon leads to a change in a conventional mechanism of molecular packing for s-PS in the drying stage. During melt-crystallization, clay plays a vital role in facilitating the formation of the thermodynamically favored all-trans p form crystal, particularly on the s-PS thin film. When the s-PS is melt-crystallized at a cooling rate of 1 degreesC/min from 320 degreesC, the highest absolute crystallinity of beta form up to 0.56 occurs in the clay dispersibility of few tenths to 100 nm in the s-PS matrix; then dispersibility is of 1-2 nm (0.49), and the final one is of pure s-PS (0.42). Evidently, clay significantly affects the chain conformation and crystallization of s-PS.en_US
dc.language.isoen_USen_US
dc.titleChain conformation and crystallization behavior of the syndiotactic polystyrene nanocomposites studied using Fourier transform infrared analysisen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/ma991897ren_US
dc.identifier.journalMACROMOLECULESen_US
dc.citation.volume34en_US
dc.citation.issue9en_US
dc.citation.spage2992en_US
dc.citation.epage2999en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000168236600037-
dc.citation.woscount44-
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