Specific features of radical copolymerization of methyl methacrylate and n-butyl acrylate in the presence of the tributylborane–p-quinone system

2017 ◽  
Vol 59 (5) ◽  
pp. 516-525 ◽  
Author(s):  
D. V. Ludin ◽  
Yu. L. Kuznetsova ◽  
S. D. Zaitsev
Keyword(s):  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Radical Copolymerization

Atom Transfer Radical Copolymerization of Methyl Methacrylate andn-Butyl Acrylate

2001 ◽  
Vol 34 (3) ◽  
pp. 415-424 ◽  
Author(s):  
Michael J. Ziegler ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Radical Copolymerization ◽  
Atom Transfer

Miniemulsion Polymerization Stabilized by a Well-Defined, Amphiphilic Gradient Poly(styrene-co-acrylic acid) Copolymer

2006 ◽  
Vol 59 (8) ◽  
pp. 544 ◽  
Author(s):  
Catherine Lefay ◽  
Maud Save ◽  
Bernadette Charleux ◽  
Stéphanie Magnet
Keyword(s):  
Particle Size ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Miniemulsion Polymerization ◽  
Radical Copolymerization ◽  
Water Soluble ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Free Radical Copolymerization

The nitroxide-mediated controlled free-radical copolymerization of styrene (St) and acrylic acid (AA) was used to synthesize a well-defined poly(St30%-co-AA70%) amphiphilic gradient copolymer. The latter proved to be an efficient stabilizer in the 45 wt.-% solids content, batch miniemulsion polymerizations of St and of mixtures of methyl methacrylate/n-butyl acrylate (35/65 w/w). With 2,2´-azobisisobutyronitrile as an oil-soluble initiator, polystyrene latexes with a very narrow particle distribution were obtained, whereas the water-soluble initiator, potassium persulfate, led to broad, multimodal particle size distributions. Such results were explained by the contribution of two nucleation mechanisms: droplet nucleation and homogeneous nucleation. In contrast, the poly(methyl methacrylate-co-n-butyl acrylate) latexes exhibited larger particle size and narrower particle size distributions with persulfate initiator, than the polystyrene latexes.

Flocculation Effects of Hydrophobically Modified Polyacrylamides for Tailing Slurry

2012 ◽  
Vol 602-604 ◽  
pp. 781-784 ◽  
Author(s):  
Da Ping Wu ◽  
Li Na Zhu ◽  
Yan Lin Sun
Keyword(s):  
Molecular Weight ◽  
Free Radical ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Water Solution ◽  
Insoluble Fraction ◽  
Radical Copolymerization ◽  
Free Radical Copolymerization ◽  
Hydrophobically Modified ◽  
Monomer Content

The hydrophobically modified polyacrylamides (PAM) were synthesized using butyl acrylate (BA) and methyl methacrylate (MMA) as hydrophobic monomers, via water solution free radical copolymerization. The influences of hydrophobic monomer content on the molecular weight, insoluble fraction and dissolution rate of PAM were investigated. The flocculation effects of PAMs for two kinds of tailing slurry with difficult sedimentation feature were also evaluated. The results show that different flocculation effects of hydrophobically modified PAMs can be obtained according to different kinds of tailing slurry.

scholarly journals Modeling of the Free Radical Copolymerization Kinetics of n-Butyl Acrylate, Methyl Methacrylate and 2-Ethylhexyl Acrylate Using PREDICI®

Processes ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 395 ◽  
Author(s):  
Javier A. Gómez-Reguera ◽  
Eduardo Vivaldo-Lima ◽  
Vida A. Gabriel ◽  
Marc A. Dubé
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
Butyl Acrylate ◽  
Radical Copolymerization ◽  
Free Radical Copolymerization ◽  
Diffusion Controlled ◽  
Wide Range ◽  
Kinetics Of ◽  
Global Parameters ◽  
Copolymerization Kinetics

Kinetic modeling of the bulk free radical copolymerizations of n-butyl acrylate (BA) and 2-ethylhexyl acrylate (EHA); methyl methacrylate (MMA) and EHA; as well as BA, MMA and EHA was performed using the software PREDICI®. Predicted results of conversion versus time, composition versus conversion, and molecular weight development are compared against experimental data at different feed compositions. Diffusion-controlled effects and backbiting for BA were incorporated into the model as they proved to be significant in these polymerizations. The set of estimated global parameters allows one to assess the performance of these copolymerization systems over a wide range of monomer compositions.

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