『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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EID=73679EID:73679, Map:0, LastModified:2022年5月5日(木) 20:05:29, Operator:[[ADMIN]], Avail:TRUE, Censor:0, Owner:[玉井 伸岳], Read:継承, Write:継承, Delete:継承.
種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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組織 (推奨): 1.徳島大学.工学部.生物工学科.生物機能工学講座 [継承]
著者 (必須): 1.玉井 伸岳 ([徳島大学.大学院社会産業理工学研究部.生物資源産業学域.応用生命系.応用生物資源学分野]/[徳島大学.生物資源産業学部.生物資源産業学科.応用生命講座])
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2. (英) Aono Hajime (日) (読)
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3. (英) Tatsumi Daisuke (日) (読)
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4. (英) Matsumoto Takayoshi (日) (読)
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題名 (必須): (英) Differences in Rheological Properties of Solutions of Plant and Bacterial Cellulose in LiCl/N,N-Dimethylacetamide  (日)    [継承]
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要約 (任意): (英) Differences in molecular properties of celluloses from different biological origins were investigated chiefly in terms of the rheological properties of their solutions in 8 wt % LiCl/N, N-dimethylacetamide (DMAc). Cotton linter (CC) and dissolving pulp (DP) were used as cellulose samples derived from plant, and a cellulose from Acetobacter xylinum was also used as a bacterial cellulose (BC). For the three kinds of cellulose solutions, the values of η0 - ηs (η0: zero shear rate viscosity of solution, ηs: solvent viscosity) were in proportion to the weight fraction of polymer, φw, in the dilute region. On the other hand, they were in proportion to φw4 for the CC and the DP solutions and φw3 for the BC solution in the semidilute or concentrated region. This φw-dependence of η0 - ηs shows that CC and DP, celluloses from plants, behave as a flexible polymer and that BC behaves as a rodlike polymer, according to several molecular theories. Plateau modulus, GN, was in proportion to φw2 for the CC solution, signifying that network structure by entanglement was formed in the CC solution, as is often observed for solutions of flexible synthetic polymers. On the other hand, the concentrated solution of BC showed the typical small-angle X-ray scattering (SAXS) profile of two-phase systems, which can be well approximated by Debye-Bueche equation. This fact indicates that the structure of the BC solution apparently differs from the network structure.  (日)    [継承]
キーワード (推奨): 1. (英) Cellulose solution (日) (読) [継承]
2. (英) LiCl·DMAc (日) (読) [継承]
3. (英) Rheological properties (日) (読) [継承]
4. (英) Bacterial cellulose (日) (読) [継承]
5. (英) Cotton cellulose (日) (読) [継承]
発行所 (推奨): 日本レオロジー学会 [継承]
誌名 (必須): 日本レオロジー学会誌 ([日本レオロジー学会])
(pISSN: 0387-1533, eISSN: 2186-4586)

ISSN (任意): 0387-1533
ISSN: 0387-1533 (pISSN: 0387-1533, eISSN: 2186-4586)
Title: 日本レオロジー学会誌
Supplier: 一般社団法人 日本レオロジー学会
Publisher: Society of Rheology
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年月日 (必須): 西暦 2003年 1月 初日 (平成 15年 1月 初日) [継承]
URL (任意): http://ci.nii.ac.jp/naid/10029815114/ [継承]
DOI (任意): 10.1678/rheology.31.119    (→Scopusで検索) [継承]
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CRID (任意): 1390282680069967744 [継承]
NAID : 10029815114 [継承]
WOS (任意): 000184603600001 [継承]
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標準的な表示

和文冊子 ● Nobutake Tamai, Hajime Aono, Daisuke Tatsumi and Takayoshi Matsumoto : Differences in Rheological Properties of Solutions of Plant and Bacterial Cellulose in LiCl/N,N-Dimethylacetamide, Journal of Society of Rheology Japan, Vol.31, No.3, 119-130, 2003.
欧文冊子 ● Nobutake Tamai, Hajime Aono, Daisuke Tatsumi and Takayoshi Matsumoto : Differences in Rheological Properties of Solutions of Plant and Bacterial Cellulose in LiCl/N,N-Dimethylacetamide, Journal of Society of Rheology Japan, Vol.31, No.3, 119-130, 2003.

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