On-line ultrasonic measurements of methyl methacrylate polymerization for application to reactive extrusion

Authors
Kiehl, C Chu, LL Letz, K Min, K
Citation
C. Kiehl et al., On-line ultrasonic measurements of methyl methacrylate polymerization for application to reactive extrusion, POLYM ENG S, 41(6), 2001, pp. 1078-1086
Citations number
33
Categorie Soggetti
Material Science & Engineering
Journal title
POLYMER ENGINEERING AND SCIENCE
ISSN journal
00323888 → ACNP
Volume
41
Issue
6
Year of publication
2001
Pages
1078 - 1086
Database
ISI
SICI code
0032-3888(200106)41:6<1078:OUMOMM>2.0.ZU;2-Y
Abstract
An ultrasonic measurement system was developed for monitoring the polymeriz ation of methyl methacrylate (MMA) in a model batch reactor and a model twi n screw extruder. Conversion of MMA polymerized in a home-made reaction cha mber was compared with results obtained from a differential scanning calori meter (DSC). The objective is to correlate ultrasonic velocity to extent of reaction based on the model experiments of poly(methyl methacrylate) in so lution with MMA. This primary ultrasonic measurement system was applied to the on-line measurement of the extent of MMA polymerization in a model twin -screw extruder.