Evolution of V iscoelasticity through Sol-Gel Transition of Polyacrylonitrile/Dimethylacetamide Solution : Power Law Relaxation observable with Characteristic Frequency Window

• 資料種別: 文書・図像類
• タイトル: Evolution of V iscoelasticity through Sol-Gel Transition of Polyacrylonitrile/Dimethylacetamide Solution : Power Law Relaxation observable with Characteristic Frequency Window
• 著者・編者: Tanaka, Y.; Arimoto, M.
• 著者標目: Tanaka, Y.; Arimoto, M.
• 出版事項: Materials Research Society of Japan
• 出版年月日等: 2013
• 出版年（W3CDTF）: 2013
• タイトル（掲載誌）: Transactions of the Materials Research Society of Japan
• 巻号年月日等（掲載誌）: 38 4
• 掲載巻: 38
• 掲載号: 4
• 掲載ページ: 633-637
• ISSN（掲載誌）: ISSN : 1382-3469
• 本文の言語コード: eng
• 件名標目: Poly acrylonitrile; Gelation; Freezing and Thawing; Viscoelasticity; Power Law R elaxation
• 対象利用者: 一般
• 一般注記: Thermally induced gelation of polyacrylonitrile( PAN) solution in dimethylacetamide was studied through dynamic viscoelasticity measurements. PAN gel were prepared by the freezing( – 50 ° C) and thawing(25 ° C) method. The evolution of G '( ω ) and G "( ω ) da ta in the process of gelation i s observ ed and the critica l behaviour i s obtained around the sol - gel threshold in which the power law of G '( ω ) ~ G "( ω ) ∝ ω n holds. The evolution in the gelation can be interpreted thr ough the dynamic viscosity, in which characteristic frequency window is defined in connection with the formation of PAN network. The relation between the frequency and the corr elation length is also found. The correlation length characterise the size of the cluster formed by the aggreg ation of PAN chain in pre - gel state, and also characterise the size of regions within the network to follow the power law.
• オンライン閲覧公開範囲: 限定公開
• 著作権情報: Copyright(C)2013 The Matterials Research Society of Japan
• 関連情報（DOI）: 10.14723/tmrsj.38.633
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 福井大学 : 福井大学学術機関リポジトリ