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dc.contributor.authorSheen, Yuung-Chingen_US
dc.contributor.authorLu, Chu-Huaen_US
dc.contributor.authorHuang, Chih-Fengen_US
dc.contributor.authorKuo, Shiao-Weien_US
dc.contributor.authorChang, Feng-Chihen_US
dc.date.accessioned2014-12-08T15:11:02Z-
dc.date.available2014-12-08T15:11:02Z-
dc.date.issued2008-08-26en_US
dc.identifier.issn0032-3861en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.polymer.2008.06.055en_US
dc.identifier.urihttp://hdl.handle.net/11536/8447-
dc.description.abstractWe have synthesized the polyhedral oligomeric silsesquioxane (POSS) derivatives OS-POSS and OA-POSS through the hydrosilylation of styrene and 4-acetoxystyrene, respectively, with octakis(dimethylsiloxy)-silsesquioxane (Q(8)M(8)(H)). We then prepared OP-POSS through acetoxyl hydrazinolysis of OA-POSS with hydrazine monohydrate. The chemical structures of these POSS derivatives were characterized using FTIR and H-1 NMR spectroscopy and MALDI-TOF mass spectrometry. Unlike Q(8)M(8)(H), which is crystalline, these three hydrosilylated POSS derivatives are liquids at 25 degrees C. Through DSC and XRD analyses, we found that they exhibit polymer-like glass transitions and amorphous halos. These octakis-functionalized POSS derivatives can be regarded as amorphous glasses possessing low glass transition temperatures, the values of which depend on the intermolecular interactions of their outer organic groups. To investigate the dispersion of these POSS derivatives in polymer nanocomposites, we blended OS-POSS, OA-POSS, and OP-POSS with polystyrene, poly(4-acetoxystyrene), and poly(4-vinylpyridine), respectively, and investigated the effects of the resulting intermolecular aromatic hydrophobic, dipole-dipole, and hydrogen-bonding interactions, respectively. Dipole-dipole interactions provided the best dispersion of OA-POSS in poly(4-acetoxystyrene), in which the POSS-polymer intermolecular interactions were of similar strength to the POSS-POSS interactions. (C) 2008 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectamorphousen_US
dc.subjectnanoparticlesen_US
dc.subjectnanocompositesen_US
dc.titleSynthesis and characterization of amorphous octakis-functionalized polyhedral oligomeric silsesquioxanes for polymer nanocompositesen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.polymer.2008.06.055en_US
dc.identifier.journalPOLYMERen_US
dc.citation.volume49en_US
dc.citation.issue18en_US
dc.citation.spage4017en_US
dc.citation.epage4024en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000259113900022-
dc.citation.woscount43-
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