| 马来酸酐接枝液体异戊橡胶接枝率的测试方法 |
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| 引用本文： | 何丽霞,陈冬梅.马来酸酐接枝液体异戊橡胶接枝率的测试方法[J].医学教育探索,2015,28(4):398-402. |
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| 作者姓名： | 何丽霞 陈冬梅 |
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| 作者单位： | 青岛科技大学高分子科学与工程学院, 山东 青岛 266042;青岛伊科思新材料股份有限公司, 山东 青岛 266604;青岛科技大学高分子科学与工程学院, 山东 青岛 266042 |
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| 摘 要： | 在锂系液体橡胶(LIR)聚合反应后期加入马来酸酐(MAH)进行接枝反应,制备了马来酸酐接枝液体异戊橡胶(LIR-g-MAH)。采用化学滴定法对比研究了LIR-g-MAH接枝率的测试方法。结果表明,直接滴定法准确度高、重复性好,且当样品用量为1.0~2.0 g,水解试剂为乙醇,滴定碱标准溶液浓度为0.08~0.12 mol/L时,测试条件最优。
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| 关 键 词： | 马来酸酐 液体异戊橡胶 接枝率 |
| 收稿时间： | 2015/9/30 0:00:00 |
Test Method of Grafting Ratio of Maleic Anhydride Grafted Liquid Isoprene Rubber |
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| HE Li-xia and CHEN Dong-mei.Test Method of Grafting Ratio of Maleic Anhydride Grafted Liquid Isoprene Rubber[J].Researches in Medical Education,2015,28(4):398-402. |
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| Authors: | HE Li-xia and CHEN Dong-mei |
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| Institution: | School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China;Qingdao Yikesi New Material Co. Ltd., Qingdao 266604, Shandong, China;School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China |
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| Abstract: | Maleic anhydride grafted liquid isoprene rubber (LIR-g-MAH) is synthesized by maleic anhydride (MAH) and solution of liquid isoprene rubber (LIR) after polymerization reaction of LIR with lithium catalyst. The test method of grafting ratio of LIR-g-MAH was studied with chemical titration method. Results showed that the optimal determination conditions for grafting ratio of LIR-g-MAH are as follows: the direct titration method has higher accuracy and better repeatability, sample dosage is 1.0~2.0 g, hydrolysis reagent is ethanol, the concentration of standard KOH-ethanol solution is 0.08~0.12 mol/L. |
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| Keywords: | maleic anhydride liquid isoprene rubber grafting ratio |
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