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

Material type: 文書・図像類

Author: Tanaka, Y.ほか

Publisher: Materials Research Society of Japan

Publication date: 2013

Material Format: Digital

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Note (General)：: Thermally induced gelation of polyacrylonitrile( PAN) solution in dimethylacetamide was studied through dynamic viscoelasticity measurements. PAN gel ...

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Material Type: 文書・図像類
Title: Evolution of V iscoelasticity through Sol-Gel Transition of Polyacrylonitrile/Dimethylacetamide Solution : Power Law Relaxation observable with Characteristic Frequency Window
Author/Editor: Tanaka, Y.
Arimoto, M.
Author Heading: Tanaka, Y.
Arimoto, M.
Publication, Distribution, etc.: Materials Research Society of Japan
Publication Date: 2013
Publication Date (W3CDTF): 2013
Periodical title: Transactions of the Materials Research Society of Japan
No. or year of volume/issue: 38 4
Volume: 38
Issue: 4
Pages: 633-637
ISSN (Periodical Title): ISSN : 1382-3469
Text Language Code: eng
Subject Heading: Poly acrylonitrile
Gelation
Freezing and Thawing
Viscoelasticity
Power Law R elaxation
Target Audience: 一般
Note (General): 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.
Access Restrictions: 限定公開
Rights (production): Copyright(C)2013 The Matterials Research Society of Japan
Related Material (DOI): 10.14723/tmrsj.38.633
Data Provider (Database): 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
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ