Fabrication of Rod-like Crystals of Poly(p-oxycinnamoyl) by Hydrodynamically Induced Crystallization during Solution Polymerization
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- Kohama Shin-ichiro
- Graduate School of Environmental Science, Okayama University, 3-1-1 Tsushima-naka,Okayama 700-8530, JAPAN
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- Muraoka Mayuko
- Graduate School of Environmental Science, Okayama University, 3-1-1 Tsushima-naka,Okayama 700-8530, JAPAN
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- Yamazaki Shinichi
- Graduate School of Environmental Science, Okayama University, 3-1-1 Tsushima-naka,Okayama 700-8530, JAPAN
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- Kimura Kunio
- Graduate School of Environmental Science, Okayama University, 3-1-1 Tsushima-naka,Okayama 700-8530, JAPAN
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Microspheres of poly(p-oxycinnamoyl) (POC) were obtained by the polymerization of (E )-4- acetoxycinnamic acid in aromatic solvent at 320degree and a concentration of 1.5% without stirring via liquid-liquid phase separation of oligomers. In contrast to this, rod-like crystals were formed under shearing with more than 700 rpm. The obtained rod-like crystals were 10-15 um in length and 1.0-1.5 um in width having many thorns on the surface. The critical stirring speed for the onset of Taylor vortices was in agreement with 700 rpm and the crystallization of oligomers was hydrodynamically induced by the generation of Taylor vortices affording the rod-like crystals. Stirring influenced the morphology of POC significantly and this work provided a new procedure for the fabrication of fine fibers of intractable aromatic polymers.
収録刊行物
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- 繊維学会誌
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繊維学会誌 64 (8), 220-223, 2008
社団法人 繊維学会
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詳細情報 詳細情報について
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- CRID
- 1390282679841016064
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- NII論文ID
- 130004434092
- 10024265700
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- NII書誌ID
- AN00131651
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- COI
- 1:CAS:528:DC%2BD1cXhtVyqtrjM
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- ISSN
- 18842259
- 00379875
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- NDL書誌ID
- 9617737
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可