Aqueous Phase Size-Exclusion-Chromatography Used for PLP−SEC Studies into Free-Radical Propagation Rate of Acrylic Acid in Aqueous Solution

2001 ◽  
Vol 34 (18) ◽  
pp. 6224-6228 ◽  
Author(s):  
Igor Lacík ◽  
Sabine Beuermann ◽  
Michael Buback
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Acrylic Acid ◽  
Size Exclusion Chromatography ◽  
Aqueous Phase ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Exclusion Chromatography ◽  
Phase Size ◽  
Radical Propagation

PLP−SEC Study into Free-Radical Propagation Rate of Nonionized Acrylic Acid in Aqueous Solution

2003 ◽  
Vol 36 (25) ◽  
pp. 9355-9363 ◽  
Author(s):  
Igor Lacík ◽  
Sabine Beuermann ◽  
Michael Buback
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Acrylic Acid ◽  
Propagation Rate ◽  
Radical Propagation

Extra-column dispersion of macromolecular solutes in aqueous-phase size-exclusion chromatography

2004 ◽  
Vol 1040 (1) ◽  
pp. 33-43 ◽  
Author(s):  
G Grznárová ◽  
M Polakovič ◽  
P Ačai ◽  
T Görner
Keyword(s):  
Size Exclusion Chromatography ◽  
Aqueous Phase ◽  
Size Exclusion ◽  
Exclusion Chromatography ◽  
Phase Size

Critically evaluated propagation rate coefficients in free-radical polymerizations: Part III. Methacrylates with cyclic ester groups (IUPAC Technical Report)

2003 ◽  
Vol 75 (8) ◽  
pp. 1091-1096 ◽  
Author(s):  
Sabine Beuermann
Keyword(s):  
Free Radical ◽  
Size Exclusion Chromatography ◽  
Ambient Pressure ◽  
Pulsed Laser ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Rate Coefficients ◽  
Arrhenius Relation ◽  
Technical Report ◽  
Exclusion Chromatography

Propagation rate coefficients, kp, as a function of temperature, are reported for bulk free-radical homopolymerizations of oxiranylmethyl, cyclohexyl, and benzyl methacrylate at ambient pressure and low conversion. The data were obtained from experiments combining pulsed-laser initiated polymerization and size-exclusion chromatography. The data determined from experiments carried out in independent laboratories obey the consistency criteria established for this technique. The rate coefficients for the three monomers are well represented by a single Arrhenius relation.

Aqueous phase size exclusion chromatography of polyvinylalcohols of different degrees of hydrolysis

2003 ◽  
Vol 197 (1) ◽  
pp. 101-114 ◽  
Author(s):  
Igor Lacík ◽  
Radka Šnauková ◽  
Barbora Šimková ◽  
Silvia Hanzelová ◽  
Pavol Alexy
Keyword(s):  
Size Exclusion Chromatography ◽  
Aqueous Phase ◽  
Size Exclusion ◽  
Exclusion Chromatography ◽  
Phase Size

PLP-SEC Study into the Free-Radical Propagation Rate Coefficients of Partially and Fully Ionized Acrylic Acid in Aqueous Solution

2004 ◽  
Vol 205 (8) ◽  
pp. 1080-1087 ◽  
Author(s):  
Igor Lacík ◽  
Sabine Beuermann ◽  
Michael Buback
Keyword(s):  
Aqueous Solution ◽  
Free Radical ◽  
Acrylic Acid ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Radical Propagation

Determination of Propagation Rate Coefficient for the Polymerization of N-Vinylpyrrolidone in Aqueous Solution by Pulsed Electron Polymerization and Size Exclusion Chromatography

2014 ◽  
Vol 3 (7) ◽  
pp. 639-642 ◽  
Author(s):  
Nina Bartoszek ◽  
Piotr Sawicki ◽  
Sławomir Kadłubowski ◽  
Piotr Ulański ◽  
Janusz M. Rosiak
Keyword(s):  
Aqueous Solution ◽  
Size Exclusion Chromatography ◽  
Rate Coefficient ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Exclusion Chromatography ◽  
Propagation Rate Coefficient

The effect of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry instrumentation parameters on the matrix-assisted laser desorption/ionization simulated size exclusion chromatography number-mass, average-weight and polydispersity values of dextran against corresponding values obtained by size exclusion chromatography

2017 ◽  
Vol 23 (6) ◽  
pp. 393-401
Author(s):  
S Bashir ◽  
AE Giannakopulos ◽  
J Liu
Keyword(s):  
Size Exclusion Chromatography ◽  
Aqueous Phase ◽  
Laser Desorption ◽  
Size Exclusion ◽  
Laser Desorption Ionization ◽  
Desorption Ionization ◽  
Exclusion Chromatography ◽  
Phase Size ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

The matrix-assisted laser desorption/ionization simulated size exclusion chromatography (SECPC) average-number mass, weight average and polydispersity of dextran 1000 were determined by matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometry. The instrument parameters were varied and the SECPC value determined via the Bruker XMASS software was compared to the value obtained from aqueous-phase size exclusion chromatography. The aqueous-phase size exclusion chromatography values for average-number mass, weight average and polydispersity were 1223 Da, 1500 Da and 1.23 (1010 Da, 1270 Da and 1.26 from manufacturer), whereas the SECPC value varied on the instrumental parameters. The factors that had the greatest effect on the average-number mass, weight average and polydispersity were: (most effect on SECPC value) laser attenuation > matrix-analyte molar concentration > matrix-analyte molar ratios > delay extraction time > solvent-system composition > detector delay (least effect on SECPC value). The oligosaccharide signal distribution as a function of laser attenuation indicate that two distinct regions exist in dextran 1000, where one corresponds to the higher mass oligosaccharides (hexasaccharide or greater), while another region corresponds to lower oligosaccharides (tetra-saccharide). This distribution depends upon the crystallization of the biopolymer and the efficiency of desorption/ionization, which yields the SECPC value. There was broad agreement between the SECPC values and size exclusion chromatography values for dextran, although the polydispersity indicated by SECPC was less than size exclusion chromatography (1.10 vs. 1.26). It can be shown that for narrow polydisperse biopolymers the instrumental conditions are less critical in the determination of average-number mass, weight average and polydispersity, although the SECPC Mn, and weight average values are often higher than the corresponding values obtained by aqueous-phase size exclusion chromatography.

Radical Propagation Kinetics ofN-Vinylpyrrolidone in Organic Solvents Studied by Pulsed-Laser Polymerization-Size-Exclusion Chromatography (PLP-SEC)

2014 ◽  
Vol 215 (23) ◽  
pp. 2327-2336 ◽  
Author(s):  
Lucia Uhelská ◽  
Dušan Chorvát ◽  
Robin A. Hutchinson ◽  
Sandhya Santanakrishnan ◽  
Michael Buback ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Size Exclusion Chromatography ◽  
Pulsed Laser ◽  
Size Exclusion ◽  
Exclusion Chromatography ◽  
Radical Propagation ◽  
Pulsed Laser Polymerization

Investigating the propagation kinetics of a novel class of nitrogen-containing methacrylates via PLP-SEC

2016 ◽  
Vol 7 (26) ◽  
pp. 4342-4351 ◽  
Author(s):  
Katrin B. Kockler ◽  
Friederike Fleischhaker ◽  
Christopher Barner-Kowollik
Keyword(s):  
Size Exclusion Chromatography ◽  
Rate Coefficient ◽  
Pulsed Laser ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Arrhenius Parameters ◽  
Exclusion Chromatography ◽  
Kinetics Of ◽  
Propagation Rate Coefficient ◽  
Pulsed Laser Polymerization

The Mark–Houwink–Kuhn–Sakurada parameters as well as Arrhenius parameters of the propagation rate coefficient for a new group of nitrogen-containing methacrylates were determined via triple detector SEC and pulsed laser polymerization–size exclusion chromatography, respectively.

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