| The Synthesis of Chitin-g-Poly(vinyl acetate) Copolymers with a Redox Initiator | |
|---|---|
| 學年 | 91 |
| 學期 | 1 |
| 出版（發表）日期 | 2002-12-01 |
| 作品名稱 | The Synthesis of Chitin-g-Poly(vinyl acetate) Copolymers with a Redox Initiator |
| 作品名稱（其他語言） | |
| 著者 | Don, Trong-ming; Chen, Yun-ru; Chiu, Wen-yen |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | Springer Netherlands |
| 著錄名稱、卷期、頁數 | Journal of polymer research 9(4), pp.257-263 |
| 摘要 | Vinyl acetate monomer was graft polymerized onto chitin with a redox initiator, cerium ammonium nitrate. Both the graft copolymerization and emulsion polymerization of pure poly(vinyl acetate) (PVAc) were observed during the reaction and a stable dispersion solution was obtained after the reaction. After the PVAc homopolymer was removed by acetone extraction, the grafting efficiency and grafting percentage were calculated from the weight balance. Transmission and scanning electronic microscope were used to observe the morphologies of the reaction product. Experimental results indicated that at initial stage of reaction, graft copolymerization, which occurred on the surface of chitin particles, dominated over the emulsion polymerization. After that, the rate of emulsion polymerization increased greatly and became dominant. The existence of chitin not only provided the stability of the emulsion particles, but also increased the polymerization rate. Structures of copolymers were evidenced with the techniques of Fourier transform infrared and differential scanning calorimeter. |
| 關鍵字 | cerium ammonium nitrate; chitin; graft copolymer; vinyl acetate |
| 語言 | en |
| ISSN | 1022-9760 1572-8935 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | NLD |
| 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/987654321/44191 ) |
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