期刊論文
| 學年 | 87 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 1999-07-01 |
| 作品名稱 | Aminolysis of cured siloxane polymers |
| 作品名稱（其他語言） | |
| 著者 | 張正良; Chang, C. L.; Lee, H. S.; Chen, C. K. |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | Elsevier |
| 著錄名稱、卷期、頁數 | Polymer degradation and stability 65(1), pp.1-4 |
| 摘要 | The rate of the aminolysis of polydimethylsiloxane networks under ambient temperature was drastically enhanced by adding ethanol to the KOH/DEA solution. The results are attributed to the complete dissolution of potassium hydroxide and the elimination of the heterogeneous interfacial diffusion resistance. A mechanism is proposed to elucidate the need of a base as the catalyst and the effect of the second nucleophile. When excess of ethanol was added, the dissolution time of the silicone networks was increased as a result of the competition of pairing the second base and the nucleophiles. The product was composed of 85% cyclic oligomers. The displacement of –NEt2 by –OEt group is evidenced by the results of NMR analyses of the final polymer product. |
| 關鍵字 | Aminolysis;Polydimethylsiloxane;Networks |
| 語言 | en |
| ISSN | 0141-3910 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | GBR |
| 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/987654321/44233 ) |