{"@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/1361418521284954752.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/pola.27921"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpola.27921"}},{"identifier":{"@type":"URI","@value":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/pola.27921"}}],"dc:title":[{"@value":"Synthesis of gradient copolysiloxanes by simultaneous copolymerization of cyclotrisiloxanes and mechanism for kinetics inverse between anionic and cationic ring‐opening polymerization"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>ABSTRACT</jats:title><jats:p>Trifluoropropylmethylsiloxane–phenylmethylsiloxane gradient copolysiloxanes were synthesized by anionic and cationic ring‐opening polymerization (ROP) of 1,3,5‐tris(trifluoropropylmethyl)cyclotrisiloxane (\n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0001.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0001\"/>) and phenylmethylcyclotrisiloxane (\n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0002.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0002\"/>). The analysis of reactivity ratios revealed that the reactivity of \n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0003.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0003\"/> toward anionic ROP was higher than that of \n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0004.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0004\"/>; however, \n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0005.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0005\"/> exhibited lower reactivity compared with \n<jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/pola27921-math-0006.png\" xlink:title=\"urn:x-wiley:0887624X:media:pola27921:pola27921-math-0006\"/> during the cationic ROP. AB and BAB type gradient copolymers were obtained because of a difference in the reactivity of the monomers. The microstructure of copolymers was characterized by <jats:sup>29</jats:sup>Si NMR spectroscopy, gel permeation chromatography, and differential scanning calorimetry. Furthermore, the mechanism for kinetics inverse of copolymerization was proposed based on the results of the optimized molecular configuration. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. <jats:bold>2016</jats:bold>, <jats:italic>54</jats:italic>, 835–843</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380861293623183744","@type":"Researcher","foaf:name":[{"@value":"Hua‐Feng Fei"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"},{"@value":"University of Chinese Academy of Sciences Beijing 100049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954756","@type":"Researcher","foaf:name":[{"@value":"Xiaojie Han"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"},{"@value":"University of Chinese Academy of Sciences Beijing 100049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954757","@type":"Researcher","foaf:name":[{"@value":"Bozheng Liu"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"},{"@value":"University of Chinese Academy of Sciences Beijing 100049 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954752","@type":"Researcher","foaf:name":[{"@value":"Xiyin Gao"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954755","@type":"Researcher","foaf:name":[{"@value":"Qian Wang"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954753","@type":"Researcher","foaf:name":[{"@value":"Zhijie Zhang"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418521284954758","@type":"Researcher","foaf:name":[{"@value":"Zemin Xie"}],"jpcoar:affiliationName":[{"@value":"Laboratory of Advanced Polymer Materials Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China"}]}],"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":"2015-10-13","prism:volume":"54","prism:number":"6","prism:startingPage":"835","prism:endingPage":"843"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fpola.27921"},{"@id":"https://onlinelibrary.wiley.com/doi/pdf/10.1002/pola.27921"}],"createdAt":"2015-10-14","modifiedAt":"2023-10-04","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/2051714792011532160","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Synthesis of polysiloxanes with functional groups by using organometallic carboxylate catalysts"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/pola.27921"},{"@type":"CROSSREF","@value":"10.1246/cl.200862_references_DOI_Y7SunjUOCXY7UMU5d6LoS7404xY"}]}