{"@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/1390282681495825152.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1295/koron1944.18.645"}},{"identifier":{"@type":"NAID","@value":"130004032277"}}],"dc:title":[{"@language":"en","@value":"Thermal Degradation Products of Polyvinyl Alcohol"},{"@value":"PVA熱分解生成物に関する研究"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"For the purpose of elucidating the mechanism of thermal degradation of polyvinyl alcohol (PVA), the compositions of degradation products of PVA were investigated. Infraredspectra and elemental analysis of the PVA film treated in vacuo did not differ greatly from those of the original. In the presence of air, it colored considerably and showed a significant increase in intensity of the absorption band due to >C=O.<BR>Acetaldehyde, crotonaldehyde, benzaldehyde, acetophenone and water were indentified in the degradation products of powdered PVA in vacuo, in nitrogen and in air, the quantities of these compounds being different. The presence of phenolic compounds were also inferred.The residue obtaind in the thermal degradation of powdered PVA in vacuo colored, and showed the decrease in-OH band and increase in >CO band, the results being different from those of the film. The elemental analysis were greatly different from those of the original."},{"@value":"熱分解機構を究明するためにPVA熱分解残渣およびPVA熱分解生成物の検索を行なった。真空中・窒素気流中あるいは空気存在下の熱分解ではそれぞれ量的には多少の差はあるが, 分解生成物として水の他にアセトアルデヒド, クロトンアルデヒド, ベンツアルデヒド, アセトフェノンを確認し, 他にフェノール系化合物の存在を推定した。"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410572171114223489","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000254926073"}],"foaf:name":[{"@language":"en","@value":"Yamaguchi Tadashi"},{"@language":"ja","@value":"山口 格"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Engineering, Tohoku University"},{"@language":"ja","@value":"東北大学工学部"}]},{"@id":"https://cir.nii.ac.jp/crid/1410572171114223488","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000254926074"}],"foaf:name":[{"@language":"en","@value":"Amagasa Masataka"},{"@language":"ja","@value":"天笠 正孝"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Faculty of Engineering, Tohoku University"},{"@language":"ja","@value":"東北大学工学部"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00232556"},{"@type":"EISSN","@value":"18848079"}],"prism:publicationName":[{"@language":"en","@value":"Kobunshi Kagaku"},{"@language":"ja","@value":"高分子化學"},{"@language":"en","@value":"Kobunshi Kagaku"},{"@language":"ja","@value":"高分子化學"}],"dc:publisher":[{"@language":"en","@value":"The Society of Polymer Science, Japan"},{"@language":"ja","@value":"公益社団法人 高分子学会"}],"prism:publicationDate":"1961","prism:volume":"18","prism:number":"198","prism:startingPage":"645","prism:endingPage":"652"},"reviewed":"false","availableAt":"1961","dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0037008653"},{"@type":"CROSSREF","@value":"10.1295/koron1944.18.645"},{"@type":"CIA","@value":"130004032277"}]}