| 原位实时近红外光谱研究核壳乳液聚合过程 |
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| 引用本文： | 高文骥,袁洪福,邱藤,李效玉.原位实时近红外光谱研究核壳乳液聚合过程[J].高等学校化学学报,2009,30(7):1293-1299. |
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| 作者姓名： | 高文骥 袁洪福 邱藤 李效玉 |
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| 作者单位： | 北京化工大学材料科学与工程学院, 碳纤维和功能高分子教育部重点实验室, 北京 100029 |
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| 摘 要： | 将苯乙烯(St)和丙烯酸丁酯(BA)单体以不同的聚合方式制备核壳乳液和共聚乳液, 并采用近红外光谱技术实现了对乳液反应过程的原位实时监测, 通过对近红外光谱的谱带归属和主成分分析, 为近红外光谱技术判别乳液聚合过程提供了科学依据, 也为判断反向核壳乳液核壳翻转的拐点提出了一种新的方法. 采用簇类独立软模式法(SIMCA)建立了定性判别模型, 得到了很好的判别结果, 为进一步研究近红外光谱技术用于核壳乳液聚合过程奠定了基础.
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| 关 键 词： | 核壳乳液 近红外光谱 谱带归属 主成分分析 簇类独立软模式法 |
| 收稿时间： | 2009-01-23 |
Research of Core-shell Emulsion Polymerization Using in-situ Near Infrared Spectroscopy |
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| GAO Wen-Ji,YUAN Hong-Fu,QIU Teng,LI Xiao-Yu.Research of Core-shell Emulsion Polymerization Using in-situ Near Infrared Spectroscopy[J].Chemical Research In Chinese Universities,2009,30(7):1293-1299. |
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| Authors: | GAO Wen-Ji YUAN Hong-Fu QIU Teng LI Xiao-Yu |
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| Institution: | School of Materials Science and Engineering, Key Lab of Carbon Fiber and Functional Polymer Materials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Near-infrared spectroscopy was employed in monitoring the core-shell emulsion polymerization and emulsion copolymerization of styrene(St) and butyl acrylate(BA). The three different polymerizations are differentiated by the band assignment and principal component analysis(PCA). The reversal process of inverted core-shell structure can be visually revealed by this method. The soft independent modeling of class analogy(SIMCA) classification model was established,which provides scientific basis for using near-... |
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| Keywords: | Core-shell emulsion NIR spectroscopy Band assignment Principal component analysis Soft independent modeling of class analogy |
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