| 变温红外光谱法研究左旋丙交酯(L-LA)的结晶相关谱带 |
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| 引用本文： | 褚艳红,张国宝,赵根锁,余守志.变温红外光谱法研究左旋丙交酯(L-LA)的结晶相关谱带[J].光谱学与光谱分析,2005,25(3):384-386. |
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| 作者姓名： | 褚艳红 张国宝 赵根锁 余守志 |
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| 作者单位： | 1． 河南大学化学化工学院，河南 开封 475001
2. 河南省分析测试中心，河南 郑州 450002 |
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| 基金项目： | 河南省自然科学基金 (0 1 1 1 0 32 0 0 )资助项目 |
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| 摘 要： | 变温红外光谱法是研究结晶化合物结晶谱带的一种有效方法。作者合成了左旋丙交酯，采用红外光谱仪、核磁共振仪、热分析仪表征了样品的结构与性能;然后利用红外变温法在15～120 ℃范围内对左旋丙交酯做了变温研究。结果发现当T=95 ℃时丙交酯在770～800 cm-1区域有两条吸收谱带变化明显，样品退火后，变化的两谱带又基本复原，由此推测，此两谱带与左旋丙交酯的结晶相关联，可能是其结晶相关谱带。
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| 关 键 词： | 左旋丙交酯 变温实验 红外光谱 |
| 文章编号： | 1000-0593(2005)03-0384-03 |
| 收稿时间： | 2003-11-07 |
| 修稿时间： | 2003年11月7日 |
Study on the Peaks Linked to the Crystalline of L-LA with Variable Temperature FTIR Spectra Method |
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| CHU Yan-hong,ZHANG Guo-bao,ZHAO Gen-suo,YU Shou-zhi.Study on the Peaks Linked to the Crystalline of L-LA with Variable Temperature FTIR Spectra Method[J].Spectroscopy and Spectral Analysis,2005,25(3):384-386. |
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| Authors: | CHU Yan-hong ZHANG Guo-bao ZHAO Gen-suo YU Shou-zhi |
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| Institution: | 1. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China 2. Analyses and Testing Center, Province of Henan, Zhengzhou 450002, China |
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| Abstract: | Variable temperature FTIR spectra method was used to study the crystalline spectra of crystal compounds. In the present paper, the sample of L-LA was synthesized and characterized by FTIR, NMR and DSC. It was found that the two peaks in therange of 800-770 cm(-1) changed sharply at 95 degrees C after being investigated by FTIR spectra between 15-120 degrees C. When the temperature increased, these peaks remained almost unchanged, but they returned to the original state after annealing. It was deduced that these two peaks are linked to the crystalline of L-LA. |
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| Keywords: | L-Lactide FTIR spectra Variable temperature method |
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