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甲基丙烯酸甲酯聚合反应的快速检测
  • 期刊名称:东华理工大学学报, 2008, 31(2): 182
  • 时间:0
  • 分类:O657.32[理学—分析化学;理学—化学]
  • 作者机构:[1]东华理工大学化学生物与材料科学学院,江西抚州344000, [2]吉林大学化学院,吉林长春130021
  • 相关基金:国家自然科学基金(20505003)
  • 相关项目:表面解吸常压化学电离源的应用基础研究
中文摘要:

基于光的Mie散射理论,建立了一种用于甲基丙烯酸甲酯(MMA)聚合反应的快速检测方法,并且考察了交联壳聚糖/银(Ⅰ)/亚硫酸钠引发甲基丙烯酸甲酯的聚合反应中Na2SO3浓度、单体浓度、反应温度、反应时间、交联壳聚糖/银(Ⅰ)量等参数的改变对反应体系的影响。如果借助手持式消光光度计,还可以用于甲基丙烯酸甲酯聚合反应的现场检测,方法具有仪器结构简单、稳定性高、操作方便等优点,单个样品测定时间不到2min。

英文摘要:

Based on the Mie theory of light scattering to spherical particles, a rapid detection method of the polymerization of Methyl methacrylate (MMA) was developed, and the influence of experimental conditions of polymerization as the representative caused by cross-linked chitosan / silver (Ⅰ) / sodium sulfite including Na2SO3 concentration, monomer concentration, temperature, time, cross-linked chitosan / silver (Ⅰ) on the monomer conversion rate were systematically investigated by using a normal spectrometer. A new extinction cuvette is designed to reduce the interference of gravity for the polymer particles. Further more, MMA polymerization can be in situ detected by using a handheld extinction photometer, with simple equipment, high stability and sensitivity. By using the current method the average time for single sample detection is less than 2 minutes.

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