Preparation of highly conductive reduced graphite oxide/poly(styrene-co-butyl acrylate) composites via miniemulsion polymerization
- Authors
- Park, Namwoo; Lee, Junghwi; Min, Honggi; Park, Yeong Don; Lee, Hwa sung
- Issue Date
- Sep-2014
- Publisher
- Elsevier BV
- Keywords
- Conductive composite; Miniemulsion polymerization; Polymer/graphite composite
- Citation
- Polymer, v.55, no.20, pp.5088 - 5094
- Indexed
- SCIE
SCOPUS
- Journal Title
- Polymer
- Volume
- 55
- Number
- 20
- Start Page
- 5088
- End Page
- 5094
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/21921
- DOI
- doi.org/10.1016/j.polymer.2014.08.029
- ISSN
- 0032-3861
- Abstract
- Polymer/reduced graphite oxide (rGO) composite nanoparticles with a high electrical conductivity were synthesized using the miniemulsion polymerization technique. The rGO was modified with a reactive surfactant, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS), to facilitate monomer intercalation into the rGO nanogalleries. The AMPS-modified rGO was emulsified in the presence of styrene (St) and butyl acrylate (BA) monomers, and the stable miniemulsion was polymerized to form poly(St-co-BA)/rGO composite latex nanoparticles. The transition in the composite nanoparticles from an electrical insulator to an electrical conductor occurred at an rGO content of 10 wt% (relative to the monolayer content), yielding an electrical conductivity of 0.49 S/cm. The electrical conductivity of the composite nanoparticles reached 2.22 S/cm at 20 wt% rGO, yielding a much better conductivity than other polymer composites prepared using a GO filler. Importantly, the miniemulsion polymerization method for fabricating poly(St-co-BA)/rGO composite nanoparticles is easy, green, low-cost, and scalable, providing a universal route to the rational design and engineering of highly conductive polymer composites. © 2014 Elsevier Ltd. All rights reserved.
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