{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360011144492867072.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/polb.21829"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpolb.21829"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/polb.21829"}}],"dc:title":[{"@value":"The effect of water content on the ultimate properties of rubbery nanocomposite gels"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>An investigation was conducted into the effects of water content (<jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-1.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-1\"/>) on the ultimate tensile properties of nanocomposite hydrogels (NC gels) based on poly(<jats:italic>N</jats:italic>‐isopropylacrylamide)/clay networks. Rubbery NC gels with low clay contents (<NC10) exhibited unique changes in their stress–strain curves, depending on the <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-3.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-3\"/>. At high <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-5.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-5\"/>, where PNIPA chains are fully hydrated, NC gels retained their rubbery tensile properties, whereas they changed to exhibit plastic‐like deformations with decreasing <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-7.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-7\"/>. Consequently, for a series of NC gels with different <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-9.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-9\"/>, a failure envelope was obtained by connecting the rupture points in the stress–strain curves. Here, the counterclockwise movement was observed as either the <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-11.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-11\"/> decreased or the strain rate increased. This seemed to be analogous to that of a conventional elastomer (e.g., SBR), although the mechanisms are different in the two cases. From the <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-13.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-13\"/> and <jats:italic>C</jats:italic><jats:sub>clay</jats:sub> dependences of the ultimate properties, three critical values of <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-16.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-16\"/> were defined, where <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-18.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-18\"/> showed a maximum strain at break, a steep increase in initial modulus, and onset of brittle fracture. Compared with NC gels, OR gels (chemically crosslinked hydrogels) showed similar but very small changes in their stress–strain curves on altering <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-20.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-20\"/>, whereas LR (viscous PNIPA solution) showed a monotonic decrease (increase) in <jats:italic>ε</jats:italic><jats:sub>b</jats:sub> (<jats:italic>E</jats:italic><jats:sub>i</jats:sub>) with decreasing <jats:italic>R</jats:italic><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/tex2gif-inf-24.gif\" xlink:title=\"urn:x-wiley:08876266:media:POLB21829:tex2gif-inf-24\"/>. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 2328–2340, 2009</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380011144492866944","@type":"Researcher","foaf:name":[{"@value":"Kazutoshi Haraguchi"}]},{"@id":"https://cir.nii.ac.jp/crid/1380579817609843328","@type":"Researcher","foaf:name":[{"@value":"Huan‐Jun Li"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"08876266"},{"@type":"EISSN","@value":"10990488"}],"prism:publicationName":[{"@value":"Journal of Polymer Science Part B: Polymer Physics"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2009-10-27","prism:volume":"47","prism:number":"23","prism:startingPage":"2328","prism:endingPage":"2340"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpolb.21829"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/polb.21829"}],"createdAt":"2009-10-27","modifiedAt":"2023-10-10","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004239612933888","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"MODIFICATION AND CHARACTERIZATION OF POLYMER/CLAY NANOCOMPOSITE HYDROGELS BY EXCHANGING WATER WITH ALCOHOLIC SOLVENTS"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285705241620864","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Effects of crosslinker density on the polymer network structure in poly‐<i>N</i>,<i>N</i>‐dimethylacrylamide hydrogels"}]},{"@id":"https://cir.nii.ac.jp/crid/1360846641749414528","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Synthesis and properties of soft nanocomposite materials with novel organic/inorganic network structures"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848655292755328","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Soft Nanohybrid Materials Consisting of Polymer–Clay Networks"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848656154738688","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Stimuli-responsive nanocomposite gels"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/polb.21829"},{"@type":"CROSSREF","@value":"10.1002/polb.23305_references_DOI_2kOBVL3uF9US5w5YXZ3bCatQvrO"},{"@type":"CROSSREF","@value":"10.1038/pj.2010.141_references_DOI_2kOBVL3uF9US5w5YXZ3bCatQvrO"},{"@type":"CROSSREF","@value":"10.1007/12_2014_287_references_DOI_2kOBVL3uF9US5w5YXZ3bCatQvrO"},{"@type":"CROSSREF","@value":"10.1007/s00396-010-2373-9_references_DOI_2kOBVL3uF9US5w5YXZ3bCatQvrO"},{"@type":"CROSSREF","@value":"10.3724/sp.j.1105.2012.12035_references_DOI_2kOBVL3uF9US5w5YXZ3bCatQvrO"}]}