Chain Length Dependent Termination in Butyl Acrylate Free-Radical Polymerization Studied via Stationary and Pulsed Laser Initiated RAFT Polymerization

2005 ◽  
Vol 38 (23) ◽  
pp. 9497-9508 ◽  
Author(s):  
Tanja Junkers ◽  
Alexander Theis ◽  
Michael Buback ◽  
Thomas P. Davis ◽  
Martina H. Stenzel ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Chain Length ◽  
Butyl Acrylate ◽  
Raft Polymerization ◽  
Pulsed Laser ◽  
Free Radical Polymerization

Impact of side reactions on molar mass distribution, unsaturation level and branching density in solution free radical polymerization of n-butyl acrylate under well-defined lab-scale reactor conditions

2021 ◽  
Vol 12 (14) ◽  
pp. 2095-2114 ◽  
Author(s):  
Mariya Edeleva ◽  
Yoshi W. Marien ◽  
Paul H. M. Van Steenberge ◽  
Dagmar R. D'hooge
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Chain Length ◽  
Mass Distribution ◽  
Butyl Acrylate ◽  
Molar Mass ◽  
Free Radical Polymerization ◽  
Molar Mass Distribution ◽  
Side Reactions ◽  
Scale Reactor

The paper describes the influence of side reactions in isothermal solution free-radical polymerization of n-butyl acrylate accounting for chain-length dependent diffusional limitations on termination.

The Kinetics of Free-Radical Polymerization: Fundamental Aspects

2002 ◽  
Vol 55 (7) ◽  
pp. 399 ◽  
Author(s):  
G. T. Russell
Keyword(s):  
Molecular Weight ◽  
Steady State ◽  
Free Radical ◽  
Radical Polymerization ◽  
Chain Length ◽  
Free Radical Polymerization ◽  
Length Dependence ◽  
Model Independent ◽  
Living Free Radical Polymerization ◽  
Kinetics Of

Some fundamental aspects of the kinetics of free-radical polymerization are reviewed. So-called classical results for rate and molecular-weight distribution are first of all presented. It is shown how this approach can be built upon when chain-length-dependent termination is allowed, which it always should be. Various termination models are considered, and it is illustrated that although the models are different, rather remarkably they give common, model-independent behaviour. Some leading experimental results regarding the chain-length dependence of termination are summarized, before the chain-length dependence of other reactivities, the variation of reactivities with conversion, and non-steady state experiments are briefly discussed. Finally, living free-radical polymerization as effected by a reversible termination agent is considered. An outline of the kinetics of these systems is given, with the oft-neglected importance of conventional termination being stressed.

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