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星型の絡み合い高分子の末端架橋における粘弾性挙動:分岐高分子に対する粘弾性計算の拡張
http://hdl.handle.net/10098/2127
http://hdl.handle.net/10098/2127f25f445d-8611-4572-87f3-0addd1fc139d
名前 / ファイル | ライセンス | アクション |
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BD00006576_001.pdf (758.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-09-04 | |||||
タイトル | ||||||
タイトル | 星型の絡み合い高分子の末端架橋における粘弾性挙動:分岐高分子に対する粘弾性計算の拡張 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Viscoelastic Behaviour for End-Linking of Entangled Star Polymer: Application of the Calculation for Branched Polymer to End-Linked Polymer | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Polymer Melts | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Viscoelasticity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Star Polymer | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | End-Linking | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Entanglement | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
資源タイプ | other | |||||
著者 |
田中, 穣
× 田中, 穣× TANAKA, Yutaka |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Viscoelastic behaviour for entangled star polymer of 3 arms was investigated before and after the end-linking using computational linear rheology system of Branch-On-Branch(BOB) Rheology. The object of this study as an experimental system was poly(propylene sulfide) star (PPS star) with different arm length. The results of calculation were compared with the experimental data which has already been published and was supplied by the author of the original article. An additional function was incorporated into BOB-rheology which enables the calculation for polymers with the end-linking. The progress of end -link reaction was analysed by formulating the consumption of reactive groups in PPS star. The formulation produced the relation between the fraction of PPS star monomer and the connectivity extent in the end-link reaction. By comparing the experimental data with the calculation data for the monomer fraction, the unequal reactivity of end groups, also known as the substitution effect, was turned out to be negligible. As a result of calculation before the end-linking, the experimental data could be well reproduced by the visoelasticity of 3 arm star polymer mixed with H-polymer rather than 3 arm star polymer alone. The results of calculation after the end-linking showed vertical shifts between the calculation and experimental data. The shifts were almost constant through the frequency range investigated and independent of the connectivity extent. Therefore, the expression of the plateau modulus(G_0=(4/5)ã »(dRT/M_e),d:density,M_e:the entanglement molar mass)is considered to underestimate the modulus appeared in the experimental data. Other features such as the cross point of G' and G", plateau region and terminal flow region were well reproduced by the calculation data. | |||||
書誌情報 |
日本レオロジー学会誌 巻 37, 号 2, p. 97-103, 発行日 2009-04 |
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出版者 | ||||||
出版者 | 日本レオロジー学会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 3871533 | |||||
書誌レコードID | ||||||
識別子タイプ | NCID | |||||
関連識別子 | TD00006576 | |||||
著者版フラグ | ||||||
出版タイプ | AO | |||||
出版タイプResource | http://purl.org/coar/version/c_b1a7d7d4d402bcce |