ICCAS OpenIR  > 其它
Synthesis of Densely Grafted Cylindrical Polymer Brushes
Yan, Ye-chao; Yang, Xiao-ke; Zhu, Wen; Zhang, Ke; Chen, Yong-ming
NOV 20 2014
Source PublicationACTA POLYMERICA SINICA
Issue11Pages:1450-1457
AbstractGraphene oxide (GO) sheets were first synthesized through oxidation of natural graphite by a modified Hummers method, and then their homogeneous and stable dispersion in N, N'-dimethylformamide (DMF) was obtained. Stable and homogeneous solution mixtures of GO and PAA (polyamic acid) in DMF at different mass ratios of GO/PAA were readily prepared. Uniform composite films of GO-FAA were subsequently prepared by solution casting. FAA was turned to polyimides (PT) and GO reduced in situ to grapheme (GS) at the same time by a subsequent thermal imidization of GO-FAA films, leading to composite films of GS-PI. Electrical resistivity, thermal stability and mechanical property of GS-PI films were studied. The results indicate that the surface resistivity of GS-PI films was significantly decreased with the increase in GS content,lowered to about 10(6) Omega, the standard of the anti-static electricity film, in the film prepared with 1.0 wt% of GO in GO-PAA. The tensile strength and the elongation at break of GS-PI composite films were both increased with increase in GS content, reached their maxima in the film prepared with 0.6 wt% of GO in GO-PAA, followed by regular decreases with further increase in GS. Different from the tensile strength and the elongation at break, the tensile modulus of GS-PI was in constant increase with GS content in the film. An increase of 37% was detected in GS-PI film prepared with 3.0 wt% of GO. Moreover, the ductility and the thermal stability of GS-PI were well kept in all the composite films regardless of its GS content.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/38629
Collection其它
Recommended Citation
GB/T 7714
Yan, Ye-chao,Yang, Xiao-ke,Zhu, Wen,et al. Synthesis of Densely Grafted Cylindrical Polymer Brushes[J]. ACTA POLYMERICA SINICA,NOV (11):1450-1457.
APA Yan, Ye-chao,Yang, Xiao-ke,Zhu, Wen,Zhang, Ke,&Chen, Yong-ming.(NOV ).Synthesis of Densely Grafted Cylindrical Polymer Brushes.ACTA POLYMERICA SINICA(11),1450-1457.
MLA Yan, Ye-chao,et al."Synthesis of Densely Grafted Cylindrical Polymer Brushes".ACTA POLYMERICA SINICA .11(NOV ):1450-1457.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yan, Ye-chao]'s Articles
[Yang, Xiao-ke]'s Articles
[Zhu, Wen]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yan, Ye-chao]'s Articles
[Yang, Xiao-ke]'s Articles
[Zhu, Wen]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yan, Ye-chao]'s Articles
[Yang, Xiao-ke]'s Articles
[Zhu, Wen]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.