Implication of mesoporous 3-D graphene skeleton platform based on interconnected framework architecture in constructing electro-conductive flexible nanocomposites

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• 作者：Keun-Young Shin ; Su Yeon Lee ; Sang-Soo Lee
• 关键词：graphene ; mesoporous 3 ; D skeleton platform ; interconnected framework ; conductive composite
• 刊名：Macromolecular Research
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：24
• 期：2
• 页码：170-175
• 全文大小：546 KB
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• 作者单位：Keun-Young Shin (1)
  Su Yeon Lee (1)
  Sang-Soo Lee (1) (2)
  
  1. Photo-Electronic Hybrids Research Center, Korea Institute of Science and Technology, Seoul, 02792, Korea
  2. KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Polymer Sciences
  Characterization and Evaluation of Materials
  Soft and Granular Matter, Complex Fluids and Microfluidics
  Nanochemistry
  Nanotec
  
• 出版者：The Polymer Society of Korea, co-published with Springer
• ISSN：2092-7673

文摘

Various polymer nanocomposites exhibiting elecro-conductivity along with flexibility were successfully fabricated by construction of the graphene-based three-dimensional (3-D) mesoporous skeleton platform derived from 3-D interconnected framework architecture constituted with two-dimensional (2-D) graphitic nanosheets, and the subsequent infiltration of polymer into pore volumes of the skeleton platform. The mesoporous 3-D skeleton platform of graphene has been easily constructed by the aggregation of graphene-coated polystyrene (PS) hybrid spheres prepared through ionic interacton between anionic graphene nanosheets and cationic PS nanospheres, and the subsequent thermal removal of polymer components, which made it possible to provide well-made pathways for electron transport as well as empty pores for the following infiltration of polymer matrix component. When a flexible polymer such as PVDF-HFP was chosen as a polymer matrix component entering into pore volumes of the graphene skeleton platform, the graphene/polymer nanocomposite tended to exhibit interesting behavior of electrical conductivity, which is comparable to that of neat graphene skeleton platform, and also maintained the initial value even under half-folding condition, evidencing excellent structural stability of the graphene skeleton. Furthermore, it was found that exchange of polymer matrix does not significantly alter the electrical conductivity of nanocomposite, confirming again the performance of 3-D graphene skeleton employing interconnected framework architecture as electron transport pathway. The ability to embed 3-D graphene skeleton into polymer matrix is a great opportunity to impart high electrical and mechanical properties to polymer composite formulation. Keywords graphene mesoporous 3-D skeleton platform interconnected framework conductive composite Electronic Supplementary MaterialSupplementary material is available for this article at 10.​1007/​s13233-016-4013-9 and is accessible for authorized users.