In situ polymerization and performance of alicyclic polyimide/graphene oxide nanocomposites derived from 6FAPB and CBDA

A series of alicyclic polyimide/graphene oxide(PI/GO) nanocomposites were successfully prepared by in situ polymerization of 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene(6FAPB) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride(CBDA) as well as GO, followed by thermal imidization. The effect of...

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Bibliographic Details
Published in:Applied surface science 2017-02, Vol.394, p.78-86
Main Authors: Lu, Yunhua, Hao, Jican, Xiao, Guoyong, Zhao, Hongbin, Hu, Zhizhi, Wang, Tonghua
Format: Article
Language:English
Subjects:
Alicyclic
Contact angle
Graphene
Graphene oxide
In-situ polymerization
Nanocomposites
Optical properties
Polyimide resins
Polyimides
Polymerization
Surface chemistry
Thermal properties
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Summary:A series of alicyclic polyimide/graphene oxide(PI/GO) nanocomposites were successfully prepared by in situ polymerization of 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene(6FAPB) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride(CBDA) as well as GO, followed by thermal imidization. The effect of GO on the thermal stability, optical properties, mechanical properties, water absorption and water surface contact angle of the PI-based nanocomposites was investigated. The uniform dispersion of GO in PI matrix was proved, and the pure PI and PI/GO nanocomposite films were amorphous. [Display omitted] •A series of alicyclic polyimide/graphene oxide(PI/GO) nanocomposites based on 6FAPB and CBDA were successfully prepared.•Without any treatment, GO could be formed a good dispersion in the alicyclic PI matrix.•The PI/GO nanocomposites exhibited the improvement of mechanical properties, thermal stability and so on.•To prepare the light colored and transparent PI/GO nanocomposite films, the thickness of film and GO loadings must be controlled strictly. A series of alicyclic polyimide/graphene oxide(PI/GO) nanocomposites were successfully prepared by in situ polymerization of 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene(6FAPB) and 1,2,3,4-cyclobutanetetracarboxylic dianhydride(CBDA) as well as GO, followed by thermal imidization. The effect of GO on the thermal stability, optical properties, mechanical properties, water absorption and water surface contact angle of the PI-based nanocomposites was investigated. The optical properties of the pure alicyclic PI and corresponding PI-based nanocomposite films showed that the addition of GO reduced the transparency of PI films in the range of 200–800nm obviously. With the increase of GO loading, the mechanical and thermal properties of alicyclic PI-based nanocomposites were enhanced. For the PI-1.0%GO nanocomposite films, the tensile strength was increased from 96MPa (pure PI) to 109MPa, and the Young’s modulus was improved from 2.41GPa (pure PI) to 3.83GPa. The 10wt% decomposition temperature for PI-1.0%GO nanocomposite films was increased from 464 (pure PI) to 481°C, while the glass transition temperature (Tg) of PI/GO was slightly increased. In addition, the water surface contact angle of PI/GO enhanced from 71° to 82.5°, and the water uptake of PI/GO decreased from 2.58% to 1.48% with increasing the GO loadings. The uniform dispersion of GO in PI matrix was proved, and the pure PI and PI/GO nanocomposite films were
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2016.10.062