Dynamic trend analysis for ultrasonic irradiation in control of suspension polymerization process

A purpose of the present paper is to demonstrate applicability of the method of dynamic trend analysis, which is based on the linear approximation technique and the cumulative sum technique, for monitoring of the reactor temperature data in the suspension polymerization process. By executing ultrasonic irradiation at the moment when an extracted segment changes, development of the dynamic trend analysis is investigated from the viewpoint of control of characteristics of polymer particles. Then, relationships between the dynamic trend analysis and the process control are also discussed by considering control of temperature rise under ultrasonic irradiation, which would influence on produced polymer particles.