A model and measurement technique for micromixing in copolymerization reactors

作者: M. Atiqullah , E.B. Nauman

DOI: 10.1016/0009-2509(90)87119-D

关键词: Continuous stirred-tank reactorMicromixingPerfect mixingCopolymerMaterials scienceStriationMechanicsChromatographySlabMethacrylateLamellar structure

摘要: Abstract A new model is presented for copolymer composition distributions in a stirred tank reactor with unmixed feed streams. The variant which now explicitly considers the effects of backmixing on popular, lamellar stretch model. It can also be regarded as an application to time-dependent slab geometries droplet diffusion An experimental technique based gradient elution thin-layer chromatography was developed measure distribution styrene-methyl methacrylate copolymers. Results laboratory-scale, showed good agreement statistical or Stockmeyer distribution, thus indicating close approach perfect mixing this small vessel. upper limit initial striation thickness calculated 1 mm.

参考文章(31)
Hiroshi Inagaki, Polymer separation and characterization by thin-layer chromatography Springer, Berlin, Heidelberg. pp. 189- 237 ,(1977) , 10.1007/3-540-08124-0_4
W. H. Stockmayer, Distribution of Chain Lengths and Compositions in Copolymers The Journal of Chemical Physics. ,vol. 13, pp. 199- 207 ,(1945) , 10.1063/1.1724022
O. Bolzern, J.R. Bourne, Mixing and fast chemical reaction—VI: Extension of the reaction zone Chemical Engineering Science. ,vol. 38, pp. 999- 1003 ,(1983) , 10.1016/0009-2509(83)80020-7
J. P. Van Hook, A. V. Tobolsky, The Thermal Decomposition of 2,2'-Azo-bis-isobutyronitrile, Journal of the American Chemical Society. ,vol. 80, pp. 779- 782 ,(1958) , 10.1021/JA01537A006
A. V. Tobolsky, C. E. Rogers, R. D. Brickman, Dead-end Radical Polymerization. II Journal of the American Chemical Society. ,vol. 80, pp. 1277- 1280 ,(1958) , 10.1021/JA01491A002
J. R. Bourne, J. Garcia-Rosas, Laminar shear mixing in reaction injection molding Polymer Engineering and Science. ,vol. 25, pp. 1- 5 ,(1985) , 10.1002/PEN.760250102
Koichi Ito, Yuya Yamashita, Nmr study of styrene-methyl methacrylate copolymer obtained by anionic polymerization Journal of Polymer Science Part B: Polymer Letters. ,vol. 3, pp. 625- 630 ,(1965) , 10.1002/POL.1965.110030804