Kinetics and Modeling of Free-Radical Batch Polymerization of Nonionized Methacrylic Acid in Aqueous Solution

2008 ◽  
Vol 47 (21) ◽  
pp. 8197-8204 ◽  
Author(s):  
Michael Buback ◽  
Pascal Hesse ◽  
Robin A. Hutchinson ◽  
Peter Kasák ◽  
Igor Lacík ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Methacrylic Acid

Termination Kinetics of the Free-Radical Polymerization of Nonionized Methacrylic Acid in Aqueous Solution

2008 ◽  
Vol 41 (10) ◽  
pp. 3513-3520 ◽  
Author(s):  
Sabine Beuermann ◽  
Michael Buback ◽  
Pascal Hesse ◽  
Robin A. Hutchinson ◽  
Silvia Kukučková ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Radical Polymerization ◽  
Methacrylic Acid ◽  
Free Radical Polymerization ◽  
Kinetics Of

Propagation Kinetics of Free-Radical Methacrylic Acid Polymerization in Aqueous Solution. The Effect of Concentration and Degree of Ionization

2007 ◽  
Vol 248 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Sabine Beuermann ◽  
Michael Buback ◽  
Pascal Hesse ◽  
Silvia Kukučková ◽  
Igor Lacık
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Methacrylic Acid ◽  
Degree Of Ionization ◽  
Kinetics Of

Critically evaluated rate coefficients for free-radical polymerization Part 6: Propagation rate coefficient of methacrylic acid in aqueous solution (IUPAC Technical Report)

2007 ◽  
Vol 79 (8) ◽  
pp. 1463-1469 ◽  
Author(s):  
Sabine Beuermann ◽  
Michael Buback ◽  
Pascal Hesse ◽  
Frank-Dieter Kuchta ◽  
Igor Lacík ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Radical Polymerization ◽  
Methacrylic Acid ◽  
Free Radical Polymerization ◽  
Direct Analysis ◽  
Propagation Rate ◽  
Bulk Polymerization ◽  
Size Exclusion ◽  
Rate Coefficients

Critically evaluated propagation rate coefficients, kp, for free-radical polymerization of methacrylic acid, MAA, in aqueous solution are presented. The underlying kp values are from two independent sources, which both used the IUPAC-recommended technique of pulsed-laser-initiated polymerization (PLP) in conjunction with molar mass distribution (MMD) analysis of the resulting polymer by size-exclusion chromatography (SEC). Different methods of measuring the MMD of the poly(MAA) samples have, however, been used: (i) direct analysis via aqueous-phase SEC and (ii) standard SEC with tetrahydrofuran as the eluent carried out on poly(methyl methacrylate) samples obtained by methylation of the poly(MAA) samples from PLP. Benchmark kp values for aqueous solutions containing 15 mass % MAA are presented for temperatures between 18 and 89 °C. The Arrhenius pre-exponential and activation energy of kp at 15 mass % MAA are 1.54 × 106 L mol-1 s-1 and 15.0 kJ mol-1, respectively. Also reported are critically evaluated kp values for 25 °C over the entire MAA concentration range from dilute aqueous solution to bulk polymerization.

Propagation Rate Coefficient of Free-Radical Polymerization of Partially and Fully Ionized Methacrylic Acid in Aqueous Solution

2009 ◽  
Vol 42 (20) ◽  
pp. 7753-7761 ◽  
Author(s):  
Igor Lacík ◽  
Lucia Učňová ◽  
Silvia Kukučková ◽  
Michael Buback ◽  
Pascal Hesse ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Radical Polymerization ◽  
Methacrylic Acid ◽  
Rate Coefficient ◽  
Free Radical Polymerization ◽  
Propagation Rate ◽  
Propagation Rate Coefficient
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