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dc.contributor.authorKorampally, Venumadhav, 1972-eng
dc.contributor.authorYun, Minseong, 1978-eng
dc.contributor.authorRajagopalan, Thiruvengadathaneng
dc.contributor.authorDasgupta, Purnendu K.eng
dc.contributor.authorGangopadhyay, Keshabeng
dc.contributor.authorGangopadhyay, Shubhraeng
dc.date.issued2009eng
dc.descriptiondoi: 10.1088/0957-4484/20/42/425602eng
dc.description.abstractNanoporous materials have become indispensable in many fields ranging from photonics, catalysis and semiconductor processing to biosensor infrastructure. Rapid and energy efficient process fabrication of these materials is, however, nontrivial. In this communication, we describe a simple method for the rapid fabrication of these materials from colloidal dispersions of Polymethyl Silsesquioxane nanoparticles. Nanoparticle-polymer composites above the decomposition temperature of the polymer are examined and the entropic gain experienced by the nanoparticles in this rubric is harnessed to fabricate novel highly porous films composed of nanoparticles. Optically smooth, hydrophobic films with low refractive indices (as low as 1.048) and high surface areas (as high as 1325 m2 g−1) have been achieved with this approach. In this communication we address the behavior of such systems that are both temperature and substrate surface energy dependent. The method is applicable, in principle, to a variety of nanoparticle-polymer systems to fabricate custom nanoporous materials.eng
dc.description.sponsorshipWe gratefully acknowledge the financial support from National Institute of Health (Award number 2-U42RR014821) and the US army.eng
dc.identifier.citationVenumadhav Korampally et al 2009 Nanotechnology 20 425602eng
dc.identifier.issn0957-4484eng
dc.identifier.urihttp://hdl.handle.net/10355/8194eng
dc.languageEnglisheng
dc.publisherInstitute of Physicseng
dc.relation.ispartofElectrical and Computer Engineering publicationseng
dc.relation.ispartofcollectionUniversity of Missouri-Columbia. College of Engineering. Department of Electrical and Computer Engineeringeng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
dc.subjectmethods of nanofabricationeng
dc.subject.lcshCondensed mattereng
dc.subject.lcshNanoscienceeng
dc.subject.lcshPolymerseng
dc.subject.lcshNucleationeng
dc.subject.lcshThermodynamicseng
dc.titleEntropy driven spontaneous formation of highly porous films from polymer-nanoparticle compositeseng
dc.typeArticleeng


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