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タイトル: | Intermolecular interactions of brush-like polymers |
著者: | Nakamura, Yo https://orcid.org/0000-0003-4432-0551 (unconfirmed) |
著者名の別形: | 中村, 洋 |
キーワード: | brush-like polymers cluster integrals excluded-volume effect polymacromonomer second virial coefficient |
発行日: | 27-Jul-2011 |
出版者: | Nature Publishing Group |
誌名: | Polymer Journal |
巻: | 43 |
号: | 9 |
開始ページ: | 757 |
終了ページ: | 761 |
抄録: | The excluded-volume parameter B for brush-like polymers was calculated assuming that each brush-like segment consists of a straight main chain with Gaussian side chains. Interactions between brush-like segments were represented by the binary and ternary interactions among side-chain segments. The first-order perturbation calculation in terms of the binary interaction between side-chain segments gave a much larger value for B than the values determined from analyses of the second virial coefficient A2 of polystyrene polymacromonomers in toluene. This suggests that consideration of higher-order terms is necessary. Results based on the smoothed-density (SD) model gave much closer values to the experimental values. Perturbation calculations considering the ternary interactions among side-chain segments revealed that it is necessary to include the residual ternary interactions for theta solvent systems. This result contradicts the experimental observation that A2 for polystyrene polymacromonomers in cyclohexane vanishes at 34.5 °C. However, the calculated results based on the SD model showed that the contribution from the effects of the residual ternary interactions is within the experimental error. |
著作権等: | © The Society of Polymer Science, Japan (SPSJ) この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/157924 |
DOI(出版社版): | 10.1038/pj.2011.61 |
出現コレクション: | 学術雑誌掲載論文等 |
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