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The Influence of the Distribution of the Composition on the Light Scattering of the Styrene-Acrylonitrile Copolymer
https://jaxa.repo.nii.ac.jp/records/34628
https://jaxa.repo.nii.ac.jp/records/346288ba14dde-337a-4fe6-84e4-45e0ad716af4
名前 / ファイル | ライセンス | アクション |
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SA2404917.pdf (408.1 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The Influence of the Distribution of the Composition on the Light Scattering of the Styrene-Acrylonitrile Copolymer | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
KAMBE, Hirotaro
× KAMBE, Hirotaro× MITA, Itaru× SHIMURA, Yuko |
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出版者 | ||||||
出版者 | 東京大学航空研究所 | |||||
出版者(英) | ||||||
出版者 | Aeronautical Research Institute, University of Tokyo | |||||
書誌情報 |
東京大學航空研究所報告 en : Report/Aeronautical Research Institute, University of Tokyo 巻 29, 号 3, p. 31-37, 発行日 1964-03 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Influence of the heterogeneity of the composition on the molecular weight of the styrene-acrylonitrile copolymer determined by the light scattering is described. Light scattering measurement was carried out in eight solvents : acetone, ethyl acetate, butanone, chloroform, dimethyl formamide, chlorobenzene, bromobenzene, and α-bromonaphthalene. An azeotropic copolymer gives a constant molecular weight independent of the refractive index of the solvent used. Commercial samples having the same mean composition as the azeotropic copolymer show apparent molecular weight varying with the solvent. The relation of the apparent molecular weight to the variation rate of the differential referactive index increment with the composition reveals the cahracteristic distribution of the composition of the copolymer. Litac has the acrylonitrile contant richer for the side of the higher molecular weight. KR, in opposition, has a distribution, in which the higher the molecular weight is, the richer the content of styrene. In the azeotropic copolymer the homogeneity of the composition was proved as generally expected. Commercial Tyril shows the same characteristics. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0376-1061 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00514444 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA2404917000 |