The following diagram describes this relationship during a polymerization of butadiene-styrene. As a result, the sonic velocity and the concentration are linked to each other. Furthermore, the degree of polymerization reflecting the share of polymer in monomer correlates with the concentration. Therefore, with ultrasonic measurement systems, it is possible to determine the concentration and the degree of polymerization. In addition, in case of emulsion polymerization of butadiene and styrene, the degree of polymerization can be determined with an accuracy of 0.1 %.
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Inline and Online Analytical Technology for Momitoring and Control