• 专利标题:   Producing a liquid crystal polymer by graphene oxide grafting low molecular aromatic polymer comprises e.g. adding light base acid monomer, aromatic heterocyclic diacid monomer and aromatic diphenol monomer, and reacting with acetic acid.
  • 专利号:   CN108727606-A
  • 发明人:   SHI Z
  • 专利权人:   UNIV WUYI
  • 国际专利分类:   C08G083/00, C09K019/38
  • 专利详细信息:   CN108727606-A 02 Nov 2018 C08G-083/00 201883 Pages: 6 Chinese
  • 申请详细信息:   CN108727606-A CN10383224 26 Apr 2018
  • 优先权号:   CN10383224

▎ 摘  要

NOVELTY - Producing a liquid crystal polymer by graphene oxide grafting low molecular aromatic polymer comprises (i) adding light base acid monomer, an aromatic heterocyclic diacid monomer, and an aromatic diphenol monomer, and reacting with acetic acid in the presence of catalyst A at 120-150 degrees C for 2-6 hours to obtain a mixture of an ethoxylated compound and a diacid monomer to prepare an epoxy liquid crystal; (ii) under an inert gas and at 220-330 degrees C, subjecting ethoxylated compound and diacid monomer in the step (i) to a cold exchange reaction in the presence of the catalyst B for 1-4 hours to form an oligomer, preparing a functionalized graphene oxide mixed solution by vacuuming the oligomer in a solid or molten state; and (iii) grafting the epoxy-based liquid crystal onto the graphene oxide compound. USE - The method is useful for producing a liquid crystal polymer by graphene oxide grafting low molecular aromatic polymer. ADVANTAGE - The method avoids the destruction of the liquid crystal properties of the macromolecule while imparting good flexibility to the molecular chain, and imparts excellent flow properties and mechanical properties to the liquid crystal polymer.