頁籤選單縮合
題名 | 乳液型陽離子丙酼胺共聚物電荷密度之準確測定=Accurate Determination for the Charge Density of Cationic Polyacrylamide Emulsion |
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作者 | 張敏超; 陳守一; 蔡玲美; 林慧玲; 邱源炎; 陳爾寧; 許筱彤; 陳哲陽; | 書刊名 | 界面科學會誌 |
卷期 | 20:1 1997.04[民86.04] |
頁次 | 頁25-32 |
分類號 | 346.03 |
關鍵詞 | 乳液型陽離子丙酼胺共聚物; 電荷密度; 膠體滴定法; 丨C-NMR分析法; 丨c-NMR; Emulsion-typed cationic acrylamide copolymer; Charge density; Colloid titration; |
語文 | 中文(Chinese) |
中文摘要 | 本研究顯示對於一些乳液型丙醯胺共聚物如陽離子型Quaternized Dimethylaminoethyl Acrylate 或 Methacrylate 丙醯胺共聚物,�CC-NMR定量測定法是 一種相當準確之電荷密度測定方法。此方法是測定共單體成份中羧基之碳核化學位移尖峰面積比而計算出電荷密度。本研究對數種不同電荷密度之共聚合物,比較膠體滴定法及�CC-NMR 分析法之測定結果,指出�CC-NMR分析法之測定結果並不受前處理之影響,因此可行準確之電荷密度。 |
英文摘要 | �C C-NMR accurately determine the charge densities of emulsion-typed cationic acrylamide copolymers, e.g. quaternary ammonium salts of poly acrylamide/dimethylaminoethyl acrylate). In this method, charge densities of polymers can be obtained by measuring the �CC-NMR resonance peak areas of the carbonyl region from its corresponding monomers. In this study, we employ colloid titration method and �CC-NMR method to analyze charge densities of polymers. Our result demonstrate that �CC-NMR measurement is unaffected by sample pretreatment and, therefore, yields accurate charge densities. |
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