{"@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/1390282679393834880.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1246/nikkashi.1972.2359"}},{"identifier":{"@type":"COI","@value":"1:CAS:528:DyaE3sXotlKnsQ%3D%3D"}},{"identifier":{"@type":"URI","@value":"https://www.jstage.jst.go.jp/article/nikkashi1972/1972/12/1972_12_2359/_pdf"}},{"identifier":{"@type":"NAID","@value":"130004153992"}}],"dc:title":[{"@language":"en","@value":"The Thermal Decomposition of Azodicarbonamide"},{"@language":"ja","@value":"アゾジカルボンアミドの熱分解"}],"description":[{"type":"abstract","notation":[{"@language":"en","@value":"The thermal decomposition of azodicarbonamide has been studied in solid state. Themal characteristics were examined by using differential thermal analysis and thermal gravimetric analysis. The kinds of decomposition products were identified by using the pyrolysis gas chromatography, infrared and mass spectrometries. Main gaseous products were N2 and CO, the amounts of CO, and NH<sub>3</sub> were negligible, while cyanic acid and isocyanic acid were produced in various proportions. The residues were isocyanuric acid and biurea mixture. Cyamelide and ammonium cyanate were obtained as sublimation products.<BR>The rate of decomposition was measured by the gas evolution method over the range 181197°C, invacuum. The course of decomposition could be followed by the expression of the form<BR>where P., isthepressure, fgasev, lvedatc, mpletedec, mp, siti, n, Pthepressureatthetime theratecnstantandCtheconstant. Theactivationenergyandthepre-exponential factorwas, 31.6kca1/moland1.0×1013, respectively.<BR>On the base softheseresults, the decomposition mechanismhas been proposed which involved the elim natinofazo-radical and the subequentreaction soft herad icalsformed. The main reactionswerethetrimerization of isocyanic acid and the addition of the resulting radicals to theamide."},{"@language":"ja","@value":"対称性アゾ化合物の固相分解の一つとして研究を行なった。アゾジカルボンアミドはユニ業的に多く用いられている反面,分解生成物,分解機構はくわしく知られていない。固相分解は多くの障害をともなうものであるが,粒度を一定にして,定温で緩慢分解を行なわせることにより再現性のある結果を得た。DTA,TG法により熱特性を調べ,分解生成物は熱分解ガスク鐸マトグラフィー,赤外吸収スペクトル,質量スペクトル法により同定した。おもな生成物はN2,CO,ピウレア,インシアヌル酸であった。微量生成物としてインシアン酸,シアン酸,NH<sub>3</sub>,シァン酸アンモニウム,シアメリドを同定した。分解速度はガス発生法によって圧力増加を追跡した。速度式はProut-T。mpkins式を満足した。圧力増加曲線はS字状になった。速度定数を求めるとき,通常圧力曲線の偏曲点を境に二段になるに対し三段になった。第-段,第二段のArrheniusプロットは直線にのり,第-段からのE8は31.6kcal/mol,前指数項は1.0×1012を得た。分解生成物の経時変化を追跡したところ,ガス発生速度に二つの極大値のあることが判明した。初めの極大値はN2,COの最大発生速度に一致したQこれから分解機構を考察した。"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410569800450454016","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000256032426"}],"foaf:name":[{"@language":"en","@value":"WAKI Kunio"},{"@language":"ja","@value":"脇 国男"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"東洋大学工学部応用化学科"},{"@language":"en","@value":"Department of Applied Chemistry, Faculty of Engineering, Toyo University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410569800450454017","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000256032427"}],"foaf:name":[{"@language":"en","@value":"YAMASHITA Tadataka"},{"@language":"ja","@value":"山下 忠孝"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"東洋大学工学部応用化学科"},{"@language":"en","@value":"Department of Applied Chemistry, Faculty of Engineering, Toyo University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"03694577"},{"@type":"EISSN","@value":"21850925"}],"prism:publicationName":[{"@language":"en","@value":"NIPPON KAGAKU KAISHI"},{"@language":"ja","@value":"日本化学会誌（化学と工業化学）"},{"@language":"en","@value":"Nippon Kagaku Kaishi"},{"@language":"ja","@value":"日化"},{"@language":"en","@value":"NIPPON KAGAKU KAISHI"},{"@language":"ja","@value":"日本化学会誌"}],"dc:publisher":[{"@language":"en","@value":"The Chemical Society of Japan"},{"@language":"ja","@value":"公益社団法人 日本化学会"}],"prism:publicationDate":"1972-12-10","prism:volume":"1972","prism:number":"12","prism:startingPage":"2359","prism:endingPage":"2364"},"reviewed":"false","url":[{"@id":"https://www.jstage.jst.go.jp/article/nikkashi1972/1972/12/1972_12_2359/_pdf"}],"availableAt":"1972-12-10","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=General%20Chemistry","dc:title":"General Chemistry"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360567187815973504","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Effect of the particle diameter of the chemical foaming agent on the foaming process and the cellular structure of one-shot compression molded polyethylene foams"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0029888425"},{"@type":"CROSSREF","@value":"10.1246/nikkashi.1972.2359"},{"@type":"CIA","@value":"130004153992"},{"@type":"CROSSREF","@value":"10.1515/polyeng-2016-0411_references_DOI_LbUb7EOEn3iTnOpThQOTDgZEtEG"}]}