Preparation and Characterization of Nanocomposite Based on Polyaniline and Graphene Nanosheets
- Authors
- Ngo Trinh Tung; Tran Van Khai; Jeon, Minhee; Lee, Yeo Jin; Chung, Hoeil; Bang, Jeong-Hwan; Sohn, Daewon
- Issue Date
- Feb-2011
- Publisher
- POLYMER SOC KOREA
- Keywords
- polyaniline; graphene nanosheet; conductivity; poly(sodium 4-styrensulfonate)
- Citation
- MACROMOLECULAR RESEARCH, v.19, no.2, pp.203 - 208
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- MACROMOLECULAR RESEARCH
- Volume
- 19
- Number
- 2
- Start Page
- 203
- End Page
- 208
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151334
- DOI
- 10.1007/s13233-011-0216-2
- ISSN
- 1598-5032
- Abstract
- Polymer nanocomposites based on polyaniline (PANi) and graphene nanosheets (GNS) modified with poly(sodium 4-styrensulfonate) (PSS-GNS) were prepared, and their structure and properties were investigated by atomic force microscopy (AFM), scanning electron microscopy (SEM), UV-vis spectroscopy, ATR-IR spectroscopy, X-ray diffraction, elemental analysis, thermogravimetric analysis (TGA) and electrical conductivity measurements. The results revealed that for the PANi/PSS-GNS nanocomposites, the disordered structure of PSS-GNS was fully destroyed and PSS-GNS exists in the form of a single GNS or stacked PSS-GNS elements in a PANi matrix. PSS-GNS was partly covered by PANi due to hydrogen bonding that occurs between the PSS-GNS and PANi. By incorporating PSS-GNS, the electrical conductivity of PANi increased linearly from 0.84 S/cm for neat PANi to 4.96 S/cm for a PANi/PSS-GNS (5%) nanocomposite. The thermal stability of the PANi was also improved significantly to approximately 100 °C by the nanocomposite.
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