{"@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/1361699995589956992.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/pola.22193"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpola.22193"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/pola.22193"}}],"dc:title":[{"@value":"Homo‐ and copolymerization of norbornene derivatives with ethene by <i>ansa</i>‐fluorenylamidodimethyltitanium activated with methylaluminoxane"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>(<jats:italic>t</jats:italic>‐BuNSiMe<jats:sub>2</jats:sub>Flu)TiMe<jats:sub>2</jats:sub> (<jats:bold>1</jats:bold>) activated with Me<jats:sub>3</jats:sub>Al‐free methylaluminoxane (dried MAO) which conducts vinyl addition polymerization of norbornene (N) with very high activity was applied for homopolymerization of N derivatives (i.e., 5‐vinyl‐2‐norbornene (5V2N), 5‐ethylidene‐2‐norbornene (5E2N), dicyclopentadiene (DCPD)) at 40 °C. The activities for the N derivatives were about two orders of magnitude lower than that for N and decreased in the following order: 5E2N ≫ 5V2N ≫ DCPD. Copolymerization of ethene (E) and 5E2N under an atmospheric pressure of E was then conducted by <jats:bold>1</jats:bold>‐dried MAO. The copolymerization proceeded with better activity than the homopolymerization of 5E2N and gave poly(E‐<jats:italic>co</jats:italic>‐5E2N) with narrow molecular weight distribution. The content of the ethylidene group in poly(E‐<jats:italic>co</jats:italic>‐5E2N) was controlled by the feed ratio of 5E2N/E. The <jats:italic>T</jats:italic><jats:sub>g</jats:sub> value of the copolymer changed from 70 °C to 155 °C according to the 5E2N content from 27 mol % to 68 mol %. The addition of N as a third monomer to the E‐5E2N copolymerization improved the activity and raised the <jats:italic>T</jats:italic><jats:sub>g</jats:sub> values of the terpolymer above 200 °C. The content of 5E2N was controlled by the 5E2N/N ratio with keeping the high <jats:italic>T</jats:italic><jats:sub>g</jats:sub> values. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 4581–4587, 2007</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699995589956993","@type":"Researcher","foaf:name":[{"@value":"Tariqul Hasan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995589956994","@type":"Researcher","foaf:name":[{"@value":"Tomiki Ikeda"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995589956992","@type":"Researcher","foaf:name":[{"@value":"Takeshi Shiono"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0887624X"},{"@type":"EISSN","@value":"10990518"}],"prism:publicationName":[{"@value":"Journal of Polymer Science Part A: Polymer Chemistry"}],"dc:publisher":[{"@value":"Wiley"}],"prism:publicationDate":"2007-08-29","prism:volume":"45","prism:number":"20","prism:startingPage":"4581","prism:endingPage":"4587"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpola.22193"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/pola.22193"}],"createdAt":"2007-08-29","modifiedAt":"2023-10-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002216643452672","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Synthesis and Structural Analysis of (Imido)vanadium(V) Dichloride Complexes Containing Imidazolin-2-iminato- and Imidazolidin-2-iminato Ligands, and their Use as Catalyst Precursors for Ethylene (Co)polymerization"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004230263558528","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Copolymerization of norbornene with ω‐alkenylaluminum as a precursor comonomer for introduction of carbonyl moieties"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283694087872512","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Highly Active Copolymerization of Ethylene and Dicyclopentadiene with [(η1-<i>t</i>-BuN)SiMe2(η1-C29H36)]TiMe2(THF) Complex"}]},{"@id":"https://cir.nii.ac.jp/crid/1360572092399834112","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Norbornadiene homopolymerization and norbornene/norbornadiene/1-octene terpolymerization by <i>ansa</i>-fluorenylamidotitanium-based catalysts"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205339584768","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Precise Synthesis of Cycloolefin Copolymer Using ansa-Silylene(fluorenyl)(amido)dimethyltitanium Complex as a Catalyst"},{"@language":"ja","@value":"ジメチルシリレン架橋（フルオレニル）（アミド）ジメチルチタン錯体触媒によるシクロオレフィン共重合体の精密合成"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/pola.22193"},{"@type":"OPENAIRE","@value":"doi_dedup___::4070f7c184bc5b46f07d92b022cb8bcc"},{"@type":"CROSSREF","@value":"10.1002/pola.26940_references_DOI_7SbmrtHnFIrOb86L1MkKA8jR1iT"},{"@type":"CROSSREF","@value":"10.1246/cl.2008.590_references_DOI_7SbmrtHnFIrOb86L1MkKA8jR1iT"},{"@type":"CROSSREF","@value":"10.5059/yukigoseikyokaishi.72.118_references_DOI_7SbmrtHnFIrOb86L1MkKA8jR1iT"},{"@type":"CROSSREF","@value":"10.1039/d0py01180k_references_DOI_7SbmrtHnFIrOb86L1MkKA8jR1iT"},{"@type":"CROSSREF","@value":"10.1021/ic402747d_references_DOI_7SbmrtHnFIrOb86L1MkKA8jR1iT"}]}