| 星形聚丙烯酰胺絮凝剂的合成与表征 |
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| 引用本文： | 钱锦文,王猛,杨鹜远.星形聚丙烯酰胺絮凝剂的合成与表征[J].高分子材料科学与工程,2003,19(6):58-61. |
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| 作者姓名： | 钱锦文 王猛 杨鹜远 |
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| 作者单位： | 浙江大学高分子系,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金(50173034)资助项目 |
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| 摘 要： | 以高价铈盐(硝酸铈铵)和多羟基有机物(丙三醇、季戊四醇、蔗糖)组成的氧化还原引发体系为引发剂引发丙烯酰胺(AM)自由基聚合，采用^1H—NMR和SEC方法对产物进行结构表征。结果表明，制备的聚丙烯酰胺(PAM)是星形聚丙烯酰胺(SPAM)，并提出了由NMR和SEC谱图计算SPAM平均臂数的两种方法。同时实验还考察了引发剂组成和用量、还原剂种类，以及单体浓度对聚合反应的影响。
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| 关 键 词： | 星形高分子 聚丙烯酰胺 絮凝剂 合成 表征 废水处理 |
| 文章编号： | 1000-7555(2003)06-0058-04 |
| 修稿时间： | 2002年1月21日 |
SYNTHESIS AND CHARACTERIZATION OF STAR-POLYACRYLAMIDE FOR FLOCCULATING AGENTS |
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| QIAN Jin-wen,WANG Meng,YANG Wu-yuan.SYNTHESIS AND CHARACTERIZATION OF STAR-POLYACRYLAMIDE FOR FLOCCULATING AGENTS[J].Polymer Materials Science & Engineering,2003,19(6):58-61. |
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| Authors: | QIAN Jin-wen WANG Meng YANG Wu-yuan |
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| Abstract: | Acrylamide polymerization was conducted using Ce~(4+) and multi-hydroxyl reducer(such as 1,2,3-propanetriol, pentaerythritol and sucrose) as initiator systems. Polyacrylamide synthesized were characterized by ()~1H-NMR and SEC, and star-structure was displayed. Meanwhiles two methods were proposed to estimate the average arm number of SPAM according to the results of ()~1H-NMR and SEC. The effects of reducer type, dosage and component of initiator and concentration of monomer on polymerization were investigated. |
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| Keywords: | star polymer polyacrylamide flocculating agent |
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