Premium
Unsteady stirring method used in suspension polymerization of styrene
Author(s) -
Yang Bin,
Kamidate Yuji,
Takahashi Koji,
Takeishi Makoto
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20001114)78:7<1431::aid-app140>3.0.co;2-w
Subject(s) - rushton turbine , coalescence (physics) , suspension (topology) , materials science , suspension polymerization , polymerization , particle size , styrene , polymer chemistry , particle size distribution , particle (ecology) , mechanics , thermodynamics , composite material , copolymer , chemistry , physics , mathematics , turbine , polymer , oceanography , homotopy , astrobiology , pure mathematics , geology
An unsteady stirring method, that is, coreverse rotation with different periodic intervals, was adopted to the suspension polymerization of styrene. Experiments were carried out in a 0.5‐L flat‐bottom flask with a six‐blade Rushton turbine. Parameters affecting the final particle size and the particle size distribution under the unsteady stirring conditions, such as the agitation speed and the periodic interval, had been studied in detail, and the results were compared with those under a steady stirring one. The experimental results showed that the average particle size decreased and the uniformity final particle size distribution could be significantly improved when unsteady stirring approach is used. These were explained as the result of the decrease of the coalescence rate during the suspension polymerization when the unsteady stirring method was used. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1431–1438, 2000
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom