Poly(ethylene oxide)/graphene oxide nanocomposites: structure, properties and shape memory behavior
- Authors
- Chang, Young-Wook; Lee, Kang-Suk; Lee, Yong-Woo; Bang, Jin Ho
- Issue Date
- Aug-2015
- Publisher
- Springer Verlag
- Citation
- Polymer Bulletin, v.72, no.8, pp.1937 - 1948
- Indexed
- SCIE
SCOPUS
- Journal Title
- Polymer Bulletin
- Volume
- 72
- Number
- 8
- Start Page
- 1937
- End Page
- 1948
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/17469
- DOI
- 10.1007/s00289-015-1381-9
- ISSN
- 0170-0839
- Abstract
- Poly(ethylene oxide) (PEO)/graphene oxide (GO) nanocomposites with GO contents of 1, 3, 5 and 7 wt% were prepared by solution mixing followed by film casting. Field-emission scanning electron microscopy observations showed that the GO nanosheets are dispersed uniformly in the PEO matrix. Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis of the nanocomposites revealed that there are hydrogen-bonded interactions between surface carboxylic acid on the GO sheets and ether group of the PEO. Differential scanning calorimetry (DSC), tensile testing, and dynamic mechanical analysis (DMA) showed that, with increasing GO content in the nanocomposites, the melting temperature and degree of crystallinity decreased while glass transition temperature, tensile modulus, strength and elongation-at-break concurrently increased. DMA results also demonstrated the presence of a rubbery plateau above the melting temperature of the PEO/GO nanocomposites, and the moduli at the plateau region increased with increasing GO content in the nanocomposites, implying that the PEO/GO nanocomposites formed a physically crosslinked structure. PEO/GO nanocomposites with GO contents higher than 5 wt% exhibited excellent thermally and infrared-triggered shape memory behavior.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF CHEMICAL AND MOLECULAR ENGINEERING > 1. Journal Articles
- COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING > 1. Journal Articles
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