| Fine structure and formation mechanism of particulate phase-inversion poly(vinylidene fluoride) membranes | |
|---|---|
| 學年 | 91 |
| 學期 | 2 |
| 出版（發表）日期 | 2003-07-01 |
| 作品名稱 | Fine structure and formation mechanism of particulate phase-inversion poly(vinylidene fluoride) membranes |
| 作品名稱（其他語言） | |
| 著者 | Lin, Dar-Jong; Beltsios, Konstantinos; Chang, Cheng-Liang; Cheng, Liao-Ping |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | Hoboken: John Wiley & Sons, Inc. |
| 著錄名稱、卷期、頁數 | Journal of Polymer Science, Part B: Polymer Physics 41(13), pp.1578-1588 |
| 摘要 | The structure and formation mechanism of a microporous phase-inversion poly(vinylidene fluoride) (PVDF) membrane exhibiting a relatively loosely packed agglomerate of semicrystalline globules are explored. The membrane has been prepared by the coagulation of a solution of PVDF in dimethylformamide by the action of 1-octanol, which is a soft nonsolvent. Experimental observations pertain to the globule surface, which is dominated by a grainy nanostructure; the globular interior, which exhibits a range of fine structures (e.g., twisted sheets and treelike branches); and the globule–globule connections, which exhibit a sheetlike or ropelike structure. On the basis of the observed structural details and phase diagram considerations, it is proposed that the membrane structure is the result of a unique combination of a polymer crystallization and a liquid–liquid phase-separation process, with end-result globular structural features of remarkable uniformity. |
| 關鍵字 | Coagulation;Morphology;Phase diagrams;Phase separation;Polymeric membranes;Phase-inversion membranes;Fluorine containing polymers |
| 語言 | en |
| ISSN | 0887-6266 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Cheng, Liao-Ping |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/44194 ) |
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