拉曼光谱
乳液聚合
单体
光谱学
成核
红外光谱学
材料科学
粒子(生态学)
聚合物
乳状液
红外线的
分析化学(期刊)
粒径
化学工程
化学
光学
色谱法
有机化学
物理化学
海洋学
量子力学
复合材料
工程类
地质学
物理
作者
Manis Gheghiani,Noémie Caillol,Serge Henrot,Timothy F. L. McKenna,Nida Sheibat‐Othman
摘要
Abstract The potential of spatially resolved spectroscopy (SRS) for in situ monitoring is evaluated in this work. SRS is based on near‐infrared spectroscopy. It is well adapted to heterogeneous systems and collects information about both physical and chemical properties. In this work, the polymer content in emulsion copolymerization is predicted using SRS. The reaction was first carried out in batch mode for particle nucleation followed by semi‐continuous monomer addition under starved conditions to allow particle growth. SRS and Raman spectroscopy are compared, and the advantages and disadvantages of both methods are highlighted, revealing that each method has its own benefits. Different operating conditions were varied, including the monomer ratio, the surfactant mass fraction, and the agitation speed. Regression models were developed using partial least square for both techniques.
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