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

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.

Determination of vinyl acetate propagation rate coefficients via high frequency pulsed laser polymerization

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Thomas Junkers ◽  
Dominik Voll ◽  
Christopher Barner-Kowollik
Keyword(s):  
Vinyl Acetate ◽  
Pulsed Laser ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Rate Coefficients ◽  
Exclusion Chromatography ◽  
Propagation Rate Coefficient ◽  
Good Agreement ◽  
Pulsed Laser Polymerization

AbstractNew data on the propagation rate coefficient, kp, of vinyl acetate (VAc) are obtained via the IUPAC recommended method of pulsed laser polymerization - size exclusion chromatography (PLP-SEC) operated at 500 Hz laser repetition rate. An apparent dependency of the experiment’s outcome on the laser pulsing rate is identified with kp being about 25 % larger at 500 Hz compared to 100 Hz. The temperature dependence of kp was determined to fit ln kp = 17.12 - 2621 K/T; data is in generally good agreement with literature values when the previous underestimation of kp by 100 Hz laser pulsing experiments is taken into account.

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