scholarly journals Synthesis Kinetics of Polymer / Copolymer Latexes via Radical Ring-Opening Emulsion Polymerization of Vinylcyclopropane

2016 ◽  
Vol 8 (3) ◽  
pp. 463-472
Author(s):  
P. Sarker ◽  
J. R. Ebdon ◽  
S. Rimmer ◽  
M. A. J. Miah ◽  
H. Ahmad
Keyword(s):  
Emulsion Polymerization ◽  
Ring Opening ◽  
Phase Transfer ◽  
Butyl Methacrylate ◽  
Reaction Conditions ◽  
Radical Ring ◽  
Emulsion Copolymerization ◽  
Emulsion Polymerizations ◽  
Kinetics Of ◽  
Copolymerization Kinetics

Radical emulsion polymerization of 1,1-bis(ethoxycarbonyl)-2-vinylcyclopropane (ECVCP) was examined in the presence of potassium persulfate (KPS) as an initiator. ECVCP underwent both emulsifier-in emulsion and emulsifier-free emulsion polymerizations to afford the ring-opened polymer in good yields. The copolymerization efficiency of this monomer was also evaluated with methyl methacrylate (MMA) and butyl methacrylate (BMA) as comonomers under the same reaction conditions. The emulsion copolymerization of ECVCP with a relatively hydrophobic monomer, lauryl methacrylate (LMA) was also investigated in presence of ?-cyclodextrin hydrate (?-CD) as a phase transfer agent. Polymerization/copolymerization kinetics, change in particle size and olefin contents were followed during the reaction.

Effects of salts on the kinetics of oxidation of alkenes by thallic salts in aqueous solutions

1981 ◽  
Vol 46 (3) ◽  
pp. 693-700 ◽  
Author(s):  
Milan Strašák ◽  
Jaroslav Majer
Keyword(s):  
Aqueous Solutions ◽  
Phase Transfer ◽  
Heterogeneous Reaction ◽  
Qualitative Model ◽  
Kinetic Effect ◽  
Tetraalkylammonium Salts ◽  
Reaction Conditions ◽  
Kinetics Of Oxidation ◽  
Kinetics Of ◽  
Heterogeneous Reaction Conditions

The kinetics of oxidation of alkenes by thallic sulphate in aqueous solutions, involving the two reaction steps-the hydroxythallation and the dethallation - was studied, and the effect of salts on the kinetics was examined; this made it possible to specify more precisely the reaction mechanism and to suggest a qualitative model of the reaction coordinate. It was found that in homogeneous as well as in heterogeneous reaction conditions, the reaction can be accelerated appreciably by adding tetraalkylammonium salts. These salts not only operate as catalysts of the phase transfer, but also exert a significant kinetic effect, which can be explained with a simplification in terms of a stabilization of the transition state of the reaction.

Mechanism and Kinetics of the Free Radical Ring-Opening Polymerization of Eight-Membered Cyclic Allylic Disulfide Monomers

2005 ◽  
Vol 38 (6) ◽  
pp. 2143-2147 ◽  
Author(s):  
Marisa Phelan ◽  
Fawaz Aldabbagh ◽  
Per B. Zetterlund ◽  
Bunichiro Yamada
Keyword(s):  
Free Radical ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring ◽  
Mechanism And Kinetics ◽  
Kinetics Of

Radical ring-opening emulsion polymerization of vinylcyclopropanes

1998 ◽  
Vol 68 (3) ◽  
pp. 497-501 ◽  
Author(s):  
Fumio Sanda ◽  
Yasushi Takamatsu ◽  
Futoshi Hoshino ◽  
Takeshi Endo
Keyword(s):  
Emulsion Polymerization ◽  
Ring Opening ◽  
Radical Ring

Understanding the emulsion copolymerization kinetics of vinyl acetate and vinyl silanes

2020 ◽  
Vol 11 (13) ◽  
pp. 2390-2398
Author(s):  
Aitor Barquero ◽  
Fernando Ruipérez ◽  
María Jesús Barandiaran ◽  
Jose Ramon Leiza
Keyword(s):  
Free Radical ◽  
Vinyl Acetate ◽  
Emulsion Copolymerization ◽  
Vinyl Silanes ◽  
Kinetics Of ◽  
Copolymerization Kinetics

Radical entry affected by alkoxysilane monomers in free radical emulsion copolymerization with vinyl acetate.

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