Effect of monomer partitioning on vinyl acetate-butyl acrylate emulsion copolymers

Effect of monomer partitioning on vinyl acetate-butyl acrylate emulsion copolymers

Semi-continuous free radical emulsion polymerizations of vinyl acetate and butyl acrylate initiated by a water-soluble (potassium peroxydisulfate, KPS) initiator in the presence of a N-methylol acrylamide (NMA) at 70°C were investigated. 12 different monomer compositions (BuA ratio, from 0/100 to 100/0) were prepared and the effect of Vinyl acetate /Butyl acrylate (Vac/BuA) monomer ratio on viscosity, molecular weights (Mn, Mw, Mv), conversion, and molecular weight distribution were also investigated. It was found that as a protective colloid, N-methylol acrylamide worked perfectly for maintaining emulsion stability. Viscosity and molecular weights were increased with BuA ratio in the synthesized copolymers. High conversion values (above 90%) were reached. It was seen that the molecular weight distributions (PDI) of the synthesized copolymers showed a narrow distribution between 3-5.

___

  • Muench S et al. (2021) Emulsion Polymerizations for a Sustainable Preparation of Efficient TEMPO-based Electrodes. Chem Sus Chem. 14(1):449-455. https://doi.org/10.1002/cssc.202002251
  • Kahraman A, Sarac A (2007) A Study on the Vinyl Acetate-co-Butyl Acrylate Latexes in the Presence of N-Methylol Acrylamide and Mixed Type Emulsifiers. Macromol Symp. 254(1):136-140. https://doi.org/10.1002/masy.200790051
  • Eliseeva VI, Ivanchev SS, Kuchanov SI, Lebedev A (2012) Emulsion polymerization and its applications in industry. Springer, New York, NY.
  • Erbil YH (2000). Vinyl acetate emulsion polymerization and copolymerization with acrylic monomers. CRC Press, Boca Raton, Florida, USA.
  • Zheng J, Xie GH, Hu X, Peng HA (2014) Emulsion polymerization of methyl methacrylate and butyl acrylate using non-ionic polyurethane as emulsifier. Advanced Materials Research 842:70-73 https://doi.org/10.4028/www.scientific.net/AMR.842.70
  • Sajjadi S, Yianneskis M (2003) Semibatch emulsion polymerization of methyl methacrylate with a neat monomer feed. Polymer Reaction Engineering. 11(4):715-736. https://doi.org/10.1081/PRE-120026371
  • Vanderhoff JW (1985) Mechanism of emulsion polymerization. Journal of Polymer Science 72(1):161-198. https://doi.org/10.1002/polc.5070720121
  • Chern CS (2006) Emulsion polymerization mechanisms and kinetics. Progress in Polymer Science. 31(5):443-486. https://doi.org/10.1016/j.progpolymsci.2006.02.001
  • Karagöz İ, Tuna Ö (2021) Effect of melt temperature on product properties of injection-molded high-density polyethylene. Polymer Bulletin 78:6073-6091. https://doi.org/10.1007/s00289-021-03695-w
  • Sjöblom J (2005) Emulsions and emulsion stability. Second edition. CRC Press, Boca Raton, Florida, USA.
  • Lovell PA, Schork FJ (2020) Fundamentals of Emulsion Polymerization. Biomacromolecules, 21(11):4396-4441. https://doi.org/10.1021/acs.biomac.0c00769
  • El-Aasser MS (2012) Emulsion polymerization of vinyl acetate. Springer, New York, NY.
  • Plessis C, Arzamendi G, Leiza JR, Schoonbrood HAS, Charmot D, Asua JM (2000) Seeded semibatch emulsion polymerization of n-butyl acrylate: Kinetics and structural properties. Macromolecules 33(14):5041-5047. https://doi.org/10.1021/ma992053a
  • Mondal S, Gupta B, Singh H (2005) Acrylic monomers based emulsion copolymer for coating application. Indian J Fibre Text Res. 30:184-189.
  • Abad C, Jose C, Cal DL, Asua JM (1994) Emulsion copolymerization in continuous loop reactors. Xhemical Engineering Science 49(24):5025–5037. https://doi.org/10.1016/0009-2509(94)00306-8
  • Seul SD, Lim JM (2004) Emulsion polymerization of vinyl acetate-butyl acrylate copolymer. Polymer Korea 28(2):135–142.
  • Karagöz İ (2021) An effect of mold surface temperature on final product properties in the injection molding of high-density polyethylene materials, Polymer Bulletin 78(5):2627-2644. https://doi.org/10.1007/s00289-020-03231-2
  • International Agency for Research on Cancer (1994) Some industrial chemicals. https://www.ncbi.nlm.nih.gov/books/NBK507457/ Erişim 01 Eylül 2022.
  • Erbil HY (1996) Surface energetics of films of poly (vinyl acetate—butyl acrylate) emulsion copolymers. Polymer 37(24):5483–5491. https://doi.org/10.1016/S0032-3861(96)00385-0
  • Lovell PA, El-Aasser MS (1997) Emulsion polymerization and emulsion polymers. Wiley, Hoboken, New Jersey, USA.
  • Ovando-Medina VM, Martínez-Gutiérrez H, Mendizábal E, Corona MA, Peralta RD (2009) Reactivity ratios and monomer partitioning in the microemulsion copolymerization of vinyl acetate and butyl acrylate. J Appl Polym Sci. 111(1):329-337. https://doi.org/10.1002/app.29041
  • Karagöz İ, Yücel G (2020) Use of super absorbent polymers with euonymus plants (Euonymus japonicus ‘Aureomarginatus’) in ornamental plant cultivation. Journal of Agricultural Sciences 26(2):201-211. https://doi.org/10.15832/ankutbd.471855