• 文献标题:   A Photoaddressable Liquid Crystalline Phase Transition in Graphene Oxide Nanocomposites
  • 文献类型:   Article
  • 作  者:   CRESPO M, SANTAGIULIANA G, PICOT O, PORTALE G, BILOTTI E, GAUTROT JE
  • 作者关键词:   graphene, liquid crystal, nanocomposite, photoresponsive, polymer brush
  • 出版物名称:   ADVANCED FUNCTIONAL MATERIALS
  • ISSN:   1616-301X EI 1616-3028
  • 通讯作者地址:   Queen Mary Univ London
  • 被引频次:   1
  • DOI:   10.1002/adfm.201900738
  • 出版年:   2019

▎ 摘  要

The multifunctionality of graphene has the potential to unlock important developments in nanocomposite science. However, the manipulation of graphene without interfering with its unique properties and while controlling its spatial organization remains challenging. Here, the formation of a photoaddressable liquid crystalline (LC) solution through the stabilization of graphene oxide (GO) with photocleavable brushes is described. The LC behavior leads to the thermodynamic entrapment of GO into low aspect ratio domains that fail to display the properties typically predicted for graphene nanocomposites. The morphology and structural and electronic performance of these nanocomposites are regenerated through the brush cleavage, which controls the phase transition of the LC phase. These results show that kinetic control of graphene assembly can be an attractive tool toward the dynamic regulation of processable sol states and structured percolated networks for rational composite manufacturing.