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A cellulose liquid crystal motor: a steam engine of the second kind

2013-01-04Artigo científico Acesso aberto
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dc.contributor.authorGeng, Yong
dc.contributor.authorAlmeida, Pedro L.
dc.contributor.authorFernandes, Susete Nogueira
dc.contributor.authorCheng, Cheng
dc.contributor.authorPalffy-Muhoray, Peter
dc.contributor.authorGodinho, Maria Helena
dc.date.accessioned2013-10-24T15:30:28Z
dc.date.available2013-10-24T15:30:28Z
dc.date.issued2013-01-04
dc.description.abstractThe salient feature of liquid crystal elastomers and networks is strong coupling between orientational order and mechanical strain. Orientational order can be changed by a wide variety of stimuli, including the presence of moisture. Changes in the orientation of constituents give rise to stresses and strains, which result in changes in sample shape. We have utilized this effect to build soft cellulose-based motor driven by humidity. The motor consists of a circular loop of cellulose film, which passes over two wheels. When humid air is present near one of the wheels on one side of the film, with drier air elsewhere, rotation of the wheels results. As the wheels rotate, the humid film dries. The motor runs so long as the difference in humidity is maintained. Our cellulose liquid crystal motor thus extracts mechanical work from a difference in humidity.por
dc.identifier.citationGENG, Yong; ALMEIDA, Pedro Lucio; FERNANDES, Susete Nogueira; CHENG, Cheng; PALFFY-MUHORAY, Peter; GODINHO, Maria Helena - A cellulose liquid crystal motor: a steam engine of the second kind. Scientific Reports. ISSN 2045-2322. Vol. 3 (2013).por
dc.identifier.issn2045-2322
dc.identifier.other10.1038/srep01028
dc.identifier.urihttp://hdl.handle.net/10400.21/2775
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherNature Publishing Grouppor
dc.relation.ispartofseries1028
dc.subjectFilmspor
dc.subjectHydroxypropylcellulosepor
dc.subjectDeformationpor
dc.subjectElastomerspor
dc.subjectBehaviorpor
dc.subjectWaterpor
dc.subjectLinkspor
dc.titleA cellulose liquid crystal motor: a steam engine of the second kindpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceLondonpor
oaire.citation.titleScientific Reportspor
oaire.citation.volume3por
person.familyNameMarques de Almeida
person.familyNamePalffy-Muhoray
person.familyNameGodinho
person.givenNamePedro
person.givenNamePeter
person.givenNameMaria Helena
person.identifier.ciencia-id0218-71B2-2DE0
person.identifier.ciencia-idC316-7B1F-4513
person.identifier.orcid0000-0001-7356-8455
person.identifier.orcid0000-0002-9685-5489
person.identifier.orcid0000-0002-9760-5983
person.identifier.ridB-4356-2009
person.identifier.ridJ-3679-2013
person.identifier.scopus-author-id57190384213
person.identifier.scopus-author-id7005654016
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication429b6d71-328e-42b3-8151-15493de249b8
relation.isAuthorOfPublication98373df8-4504-4a7c-b889-447904631682
relation.isAuthorOfPublication9e92c2e7-f179-42a4-b284-2b30b769aa0b
relation.isAuthorOfPublication.latestForDiscovery98373df8-4504-4a7c-b889-447904631682

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