Cationic Microemulsion Polymerization of Alkyl Acrylates

Issa Katime,Eduardo Mendizábal,Jorge Flores,Jesús Arellano

doi:10.4236/msa.2010.15043

Issa Katime, Eduardo Mendizábal + Show 2 more

Open Access

https://doi.org/10.4236/msa.2010.15043

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Abstract

Here we present the polymerization of n-butyl acrylate (BA), ethyl acrylate (EA) and methyl acrylate (MA) in tri-component microemulsions, using a cationic surfactant such as dodecyl trimetyl ammonium bromide in water, as a function of temperature, initiator type and, monomer and initiator concentration. The final latexes are transparent and blue color, with particle size ranging between 20 and 60 nm determined by quasielastic light scattering (QLD) and SEC molar masses of the order of 106 g/mol. Reaction times are short and reaction rates are high with final conversions between 70 and 98% depending on the monomer and the reaction conditions.

Highlights

Microemulsion polymerization was born as an alternative process for the production of polymeric latexes with unique particle size, molar masses and structure
We present the polymerization of n-butyl acrylate (BA), ethyl acrylate (EA) and methyl acrylate (MA) in tri-component microemulsions, using a cationic surfactant such as dodecyl trimetyl ammonium bromide in water, as a function of temperature, initiator type and, monomer and initiator concentration
In this work we present the polymerization of n-butyl acrylate (BA), ethyl acrylate (EA) and methyl acrylate (MA) in tricomponent microemulsions, using a cationic surfactant such as dodecyl trimetyl ammonium bromide in water as a function of temperature, monomer and initiator concentration and initiator type

Summary

Introduction

Microemulsion with dodecyl trimetyl ammonium bromide, finding that reaction rate decreases, as well as particle size and molar masses as salt concentration increases. Puig et al [20], report that reaction rate, conversion degree and molar mass decrease with alcohol content. In this work we present the polymerization of n-butyl acrylate (BA), ethyl acrylate (EA) and methyl acrylate (MA) in tricomponent microemulsions, using a cationic surfactant such as dodecyl trimetyl ammonium bromide in water as a function of temperature, monomer and initiator concentration and initiator type. Particle size and molar mass of the final latexes are of the order of 20 and 60 nm and 106 g/mol, respectively.

Experimental

Results and Discussion

Conclusions