| 聚碳酸亚丙酯中环状碳酸酯的IR法测定 |
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| 引用本文： | 余爱芳,何树杰,杨淑英,陈立班.聚碳酸亚丙酯中环状碳酸酯的IR法测定[J].分析测试学报,2000,19(2):8-10. |
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| 作者姓名： | 余爱芳 何树杰 杨淑英 陈立班 |
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| 作者单位： | 中国科学院广州化学研究所，广东广州 510650 |
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| 基金项目： | 国家自然科学基金资助项目(2934120) |
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| 摘 要： | 用ＩＲ光谱法测定聚碳亚丙酯样品中的环状小分子杂质碳酸亚丙酯。发现该杂质的质量分数与１／（Ａ１１８０／Ａ１２５０＋１）呈现线关系（Ａ１１８０和Ａ１２５０分别为波数１１８０ｃｍ＾－１和１２５０ｃｍ＾－１处的吸光度）；标准偏差为０．０１１；回归系数为０．９９９２。该法用以代替＾ＨＮＭＲ法，可以较简单地给出可靠结果，满足常规测试的要求。
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| 关 键 词： | 聚碳酸亚丙酯 碳酸亚丙酯 红外光谱法 定量分析 |
| 文章编号： | 1004－4957(2000)02－0008－03 |
Determination of Cyclic Carbonate Quantity in Polycarbonate Samples by IR Analysis |
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| YU Ai fang,HE Shu jie,YANG Shu ying,CHEN Li ban.Determination of Cyclic Carbonate Quantity in Polycarbonate Samples by IR Analysis[J].Journal of Instrumental Analysis,2000,19(2):8-10. |
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| Authors: | YU Ai fang HE Shu jie YANG Shu ying CHEN Li ban |
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| Abstract: | Procedures were suggested for IR determination of the quantities of cyclic carbonate in poly(propylene carbonate) samples. It was found that the mass fraction of the cyclic carbonate is linearly correlated with 1/(A1 180 /A1 250 1), where A1 180 and A1 250 are the absorbancy of the samples at 1 180 cm-1 and 1 250 cm-1. The standard deviation of the method is 0.011, and the regression coefficient is 0.999 2. The method is simple, reliable and may be used instead of 1H NMR. |
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| Keywords: | Poly(propylene carbonate) Propylene carbonate Quantitative analysis Infrared spectrometry |
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