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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/10119/9168
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| タイトル: | Morphological Stability of the Initially Formed Polymer Particles in Stopped-Flow Propylene Polymerization |
| 著者: | Thang, Vu Quoc
Taniike, Toshiaki
Umemori, Masaki
Ikeya, Mitsuhiro
Hiraoka, Yuichi
Terano, Minoru |
| キーワード: | Morphological stability
Polyolefins
Ziegler-Natta catalyst
Stopped-flow polymerization |
| 発行日: | 2010-02 |
| 出版者: | マテリアルライフ学会 |
| 誌名: | Journal of Materials Life Society |
| 巻: | 22 |
| 号: | 1 |
| 開始ページ: | 30 |
| 終了ページ: | 34 |
| 抄録: | The morphological stability of initially formed polymer particles against air was improved in order to study the initial morphology development with Zigler-Natta catalyst olefin polymerization. The stopped-flow polymerization technique was applied to synthesize initial polymer particles in combination with various quenching and stabilizing procedures. When polymerizing particles were quenched with cold heptane maintained at -65°C under N_2 or CO_2, the exposure of the formed particles to air caused the fast formation of cracks on the surface, leading to serious reformation of the particle shape. However, when the particles were quenched with cold heptane under CO_2 and washed with heptane containing an appropriate amount oftetrahydrofuran, the particle morphology was significantly stabilized which hardly changed even after 1 h exposure to air. The established stabilizing procedure is highly useful for various characterizations of the initially formed particles. |
| Rights: | Copyright (C) 2010 マテリアルライフ学会. Vu Quoc Thang, Toshiaki Taniike, Masaki Umemori, Mitsuhiro Ikeya, Yuichi Hiraoka, Minoru Terano, Journal of Materials Life Society, 22(1), 2010, 30-34. |
| URI: | http://hdl.handle.net/10119/9168 |
| 資料タイプ: | publisher |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
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| 14586.pdf | | 1605Kb | Adobe PDF | 見る/開く |
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