Kilohertz Pulsed-Laser-Polymerization: Simultaneous Determination of Backbiting, Secondary, and Tertiary Radical Propagation Rate Coefficients for tert -Butyl Acrylate

2016 ◽  
Vol 37 (9) ◽  
pp. 781-787 ◽  
Author(s):  
Benjamin Wenn ◽  
Thomas Junkers
Keyword(s):  
Simultaneous Determination ◽  
Butyl Acrylate ◽  
Pulsed Laser ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Tert Butyl ◽  
Radical Propagation ◽  
Pulsed Laser Polymerization

Determination of Free-Radical Propagation Rate Coefficients for Cycloalkyl and Functional Methacrylates by Pulsed-Laser Polymerization

1998 ◽  
Vol 31 (5) ◽  
pp. 1542-1547 ◽  
Author(s):  
R. A. Hutchinson ◽  
S. Beuermann ◽  
D. A. Paquet ◽  
J. H. McMinn ◽  
C. Jackson
Keyword(s):  
Free Radical ◽  
Pulsed Laser ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Radical Propagation ◽  
Pulsed Laser Polymerization

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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