The PLP‐SEC Method: Perspectives and Limitations
作者： Patrick Drawe , Michael Buback
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摘要: Pulsed-laser polymerization (PLP) in conjunction with polymer analysis by size-exclusion chromatography (SEC) is the IUPAC-recommended method for measuring propagation rate coefficients, kp, of radical polymerization. Pulse repetition rate, vrep, and photoinitiator concentration need to be adjusted termination monomer, preferably via quantity β, fraction radicals terminating prior applying successive laser pulse. By PREDICI simulation, prerequisites successful PLP-SEC work are demonstrated. Slow termination, as fully ionized monomers, specifically addressed. Both very high low vrep not suitable accurate kp measurements.
sci-hub.se 参考文章(42)
Oskar Friedrich Olaj, Irene Bitai, Franz Hinkelmann, The laser-flash-initiated polymerization as a tool of evaluating (individual) kinetic constants of free-radical polymerization, 2†. The direct determination of the rate of constant of chain propagation‡ Macromolecular Chemistry and Physics. ,vol. 188, pp. 1689- 1702 ,(1987) , 10.1002/MACP.1987.021880716
Hendrik Kattner, Patrick Drawe, Michael Buback, Novel Access to Propagation Rate Coefficients of Radical Polymerization by the SP–PLP–EPR Method Macromolecular Chemistry and Physics. ,vol. 216, pp. 1737- 1745 ,(2015) , 10.1002/MACP.201500191
Oskar Friedrich Olaj, Irene Bitai, The laser flash-initiated polymerization as a tool of evaluating (individual) kinetic constants of free radical polymerization, 3. Information from degrees of polymerization† Angewandte Makromolekulare Chemie. ,vol. 155, pp. 177- 190 ,(1987) , 10.1002/APMC.1987.051550115
Michael Buback, Mark Egorov, Robert G. Gilbert, Vladimir Kaminsky, Oskar F. Olaj, Gregory T. Russell, Philipp Vana, Gerhard Zifferer, Critically evaluated termination rate coefficients for free-radical polymerization, 1. The current situation Macromolecular Chemistry and Physics. ,vol. 203, pp. 2570- 2582 ,(2002) , 10.1002/MACP.200290041
Mark Deady, Albert W. H. Mau, Graeme Moad, Thomas H. Spurling, Evaluation of the kinetic-parameters for styrene polymerization and their chain-length dependence by kinetic simulation and pulsed-laser photolysis Macromolecular Chemistry and Physics. ,vol. 194, pp. 1691- 1705 ,(1993) , 10.1002/MACP.1993.021940617
Sabine Beuermann, Michael Buback, Pascal Hesse, Frank-Dieter Kuchta, Igor Lacík, Alex M. van Herk, Critically evaluated rate coefficients for free-radical polymerization Part 6: Propagation rate coefficient of methacrylic acid in aqueous solution Pure and Applied Chemistry. ,vol. 79, pp. 1463- 1469 ,(2007) , 10.1351/PAC200779081463
Sabine Beuermann, Michael Buback, Pascal Hesse, Igor Lacík, Free-Radical Propagation Rate Coefficient of Nonionized Methacrylic Acid in Aqueous Solution from Low Monomer Concentrations to Bulk Polymerization Macromolecules. ,vol. 39, pp. 184- 193 ,(2006) , 10.1021/MA051954I
Sabine Beuermann, Michael Buback, Thomas P. Davis, Nuria García, Robert G. Gilbert, Robin A. Hutchinson, Atsushi Kajiwara, Mikiharu Kamachi, Igor Lacík, Gregory T. Russell, Critically evaluated rate coefficients for free-radical polymerization, 4 - Propagation rate coefficients for methacrylates with cyclic ester groups Macromolecular Chemistry and Physics. ,vol. 204, pp. 1338- 1350 ,(2003) , 10.1002/MACP.200390107
Igor Lacík, Sabine Beuermann, Michael Buback, PLP-SEC study into free-radical propagation rate of nonionized acrylic acid in aqueous solution Macromolecules. ,vol. 36, pp. 9355- 9363 ,(2003) , 10.1021/MA030365E
J. Billiani, G. Rois, K. Lederer, A new procedure for simultaneous calibration of separation and axial dispersion in SEC Chromatographia. ,vol. 26, pp. 372- 376 ,(1988) , 10.1007/BF02268184