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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/9887
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| タイトル: | Modification of Orientation Birefringence of Cellulose Ester by Addition of Poly(Lactic Acid) |
| 著者: | Yamaguchi, Masayuki
Lee, SoYoung
Manaf, Mohd Edeerozey Abd
Tsuji, Manami
Yokohara, Tadashi |
| キーワード: | Birefringence
Amorphous Polymers
Biopolymers
Blending
Dynamic Mechanical Analysis |
| 発行日: | 2010-10-10 |
| 出版者: | Elsevier |
| 誌名: | European Polymer Journal |
| 巻: | 46 |
| 号: | 12 |
| 開始ページ: | 2269 |
| 終了ページ: | 2274 |
| DOI: | 10.1016/j.eurpolymj.2010.10.014 |
| 抄録: | Effect of the addition of poly(lactic acid) (PLA) to cellulose acetate propionate (CAP) on the optical anisotropy is studied considering the morphology and molecular orientation. It is found that PLA is miscible with CAP when the amount of PLA is less than 3 wt%. The dissolution of PLA chains having large intrinsic birefringence into CAP phase enhances the orientation birefringence of a stretched film, although the viscosity and thus the relaxation time of PLA is significantly shorter than those of CAP. The high level of orientation of PLA chains without relaxation is attained by the cooperative alignment with CAP chains. As a result, a retardation film having appropriate birefringence can be designed by polymer blends composed of biomass-based materials. When the amount of PLA is more than 3 wt%, however, phase separation occurs. In the case of the blends with phase-separated morphology, the orientation birefringence is not greatly enhanced by blending PLA, because the molecular orientation of PLA in PLA phase relaxes immediately as compared with that of CAP. |
| Rights: | NOTICE: This is the author's version of a work accepted for publication by Elsevier. Masayuki Yamaguchi, SoYoung Lee, Mohd Edeerozey Abd Manaf, Manami Tsuji, Tadashi Yokohara, European Polymer Journal, 46(12), 2010, 2269-2274, http://dx.doi.org/10.1016/j.eurpolymj.2010.10.014 |
| URI: | http://hdl.handle.net/10119/9887 |
| 資料タイプ: | author |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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