Synthesis of nanoparticles by cross-linking copolymerization

A. Uveges, J. F. Hartmann, J. Borbély

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Free radical cross-linking copolymerization of styrene with large amounts of ethylene glycol dimethacrylate (monomer feed: ST/EGDM = 5/5) has been investigated in toluene as a homogeneous solution. The conversion, the ratio of pendant vinyl groups and the size of the nanoparticles in the pregel state were measured at various reaction times until the onset of macrogelation. It was found that the highest possible polymer yields were 65% at 0.556 mol/dm 3 monomer concentration and nearly 100% at 0.278 mol/dm3 monomer concentration without gelation. The molecular weight distributions were monomodal at low conversions and multimodal at higher conversions. The multimodal molecular weight distributions were caused by branching reactions and crosslinking within the nanoparticles. The copolymers obtained were soluble in standard organic solvents such as toluene and chloroform. Transmission electron micrographs proved the formation of spherical particles (TEM).

Original languageEnglish
Title of host publication2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings
Pages172-175
Number of pages4
Volume2
Publication statusPublished - 2007
Event2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007 - Santa Clara, CA, United States
Duration: May 20 2007May 24 2007

Other

Other2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007
CountryUnited States
CitySanta Clara, CA
Period5/20/075/24/07

Fingerprint

Copolymerization
Monomers
Molecular weight distribution
Nanoparticles
Toluene
Gelation
Chlorine compounds
Ethylene glycol
Free radicals
Crosslinking
Organic solvents
Styrene
Copolymers
Transmission electron microscopy
Electrons
Polymers

Keywords

  • Cross-linking polymerization
  • Reactive polymeric nanoparticles

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Uveges, A., Hartmann, J. F., & Borbély, J. (2007). Synthesis of nanoparticles by cross-linking copolymerization. In 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings (Vol. 2, pp. 172-175)

Synthesis of nanoparticles by cross-linking copolymerization. / Uveges, A.; Hartmann, J. F.; Borbély, J.

2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings. Vol. 2 2007. p. 172-175.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Uveges, A, Hartmann, JF & Borbély, J 2007, Synthesis of nanoparticles by cross-linking copolymerization. in 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings. vol. 2, pp. 172-175, 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Santa Clara, CA, United States, 5/20/07.
Uveges A, Hartmann JF, Borbély J. Synthesis of nanoparticles by cross-linking copolymerization. In 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings. Vol. 2. 2007. p. 172-175
Uveges, A. ; Hartmann, J. F. ; Borbély, J. / Synthesis of nanoparticles by cross-linking copolymerization. 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings. Vol. 2 2007. pp. 172-175
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