Materials (Apr 2020)

Formula-Driven, Size-Tunable Synthesis of PMMA Nanoparticles by Varying Surfactant Concentration

  • Brian L. Kamras,
  • Nooshin Mirzanasiri,
  • Daniel K. Korir,
  • Sujata Mandal,
  • Shreya L. Hariharakumar,
  • Robby A. Petros,
  • Sreekar B. Marpu,
  • Denise P. Simmons,
  • Mohammad A. Omary

DOI
https://doi.org/10.3390/ma13081834
Journal volume & issue
Vol. 13, no. 8
p. 1834

Abstract

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In this communication, we present a streamlined, reproducible synthetic method for the production of size-tunable poly(methyl methacrylate) (PMMA) nanoparticles (PMMANPs) and amine-functionalized block-copolymer PMMANPs (H2N-PMMANPs) by varying subcritical concentrations (i.e., below the concentration required to form micelles at 1 atm and 20 °C) of sodium dodecyl sulfate (SDS). We plotted the Z-average size data against SDS concentration, which revealed a second-order exponential decay function, expressed as A 1 e − x t 1 + A 2 e − x t 2 + y 0 . The surfactant concentration (wt./wt.%) has been selected as independent variable x. This function is valid at least for the size range of 20 nm to 97 nm (PMMANPs) and 20 nm to 133 nm (H2N-PMMANPs).

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