A Theoretical Study of Propagation Rate Coefficients for Methacrylonitrile and Acrylonitrile

1998 ◽  
Vol 31 (16) ◽  
pp. 5175-5187 ◽  
Author(s):  
David M. Huang ◽  
Michael J. Monteiro ◽  
Robert G. Gilbert
Keyword(s):  
Theoretical Study ◽  
Propagation Rate ◽  
Rate Coefficients

Propagation rate coefficients from electron spin resonance studies of the emulsion polymerization of methyl methacrylate

1986 ◽  
Vol 19 (5) ◽  
pp. 1303-1308 ◽  
Author(s):  
Mathew J. Ballard ◽  
Robert G. Gilbert ◽  
Donald H. Napper ◽  
Peter J. Pomery ◽  
Paul W. O'Sullivan ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Methyl Methacrylate ◽  
Emulsion Polymerization ◽  
Electron Spin ◽  
Propagation Rate ◽  
Rate Coefficients ◽  
Spin Resonance

scholarly journals Critically evaluated propagation rate coefficients for radical polymerizations: acrylates and vinyl acetate in bulk (IUPAC Technical Report)

2019 ◽  
Vol 91 (11) ◽  
pp. 1883-1888
Author(s):  
Robin A. Hutchinson ◽  
Sabine Beuermann
Keyword(s):  
Vinyl Acetate ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Rate Coefficients ◽  
Data Sets ◽  
Chromatography Method ◽  
Benchmark Data ◽  
Technical Report ◽  
Exclusion Chromatography ◽  
Secondary Radical

Abstract Arrhenius parameters capturing the temperature dependence of radical polymerization propagation rate coefficients, kp, for methyl acrylate, butyl acrylate, and vinyl acetate in bulk are reported, based on the fitting of benchmark data sets compiled from independent laboratories using the pulsed-laser polymerization/size exclusion chromatography method. The reported kp values for acrylates hold for secondary-radical propagation and are needed to calculate effective propagation rate coefficients in situations where there is a significant population of mid-chain acrylate radicals resulting from backbiting, as will be the case at technically relevant temperatures. The results are compared to those previously reported for styrene and methacrylates to highlight the large differences in kp values seen between the major monomer families.

scholarly journals The influence of hydrogen bonding on radical chain-growth parameters for butyl methacrylate/2-hydroxyethyl acrylate solution copolymerization

2016 ◽  
Vol 7 (27) ◽  
pp. 4567-4574 ◽  
Author(s):  
Jan E. S. Schier ◽  
Robin A. Hutchinson
Keyword(s):  
Growth Parameters ◽  
Propagation Rate ◽  
Size Exclusion ◽  
Rate Coefficients ◽  
Butyl Methacrylate ◽  
Chain Growth ◽  
Copolymer Composition ◽  
Radical Chain ◽  
Effect Of Solvent ◽  
Exclusion Chromatography

Pulsed laser polymerizations coupled with size exclusion chromatography (PLP-SEC) and NMR analyses were performed to determine radical kinetic parameters for BMA/HEA, with a focus on the effect of solvent choice and H-bonding on both copolymer composition and copolymer-averaged propagation rate coefficients.

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