• 专利标题:   Preparation of temperature-sensitive graphene oxide involves dispersing graphene oxide in dispersant, adding reaction monomer and graphene oxide dispersion liquid to reaction vessel, stirring, then dripping initiator and reacting.
  • 专利号:   CN106832156-A, CN106832156-B
  • 发明人:   ZHANG X, CAO R, CHEN S, LIU H, WANG X
  • 专利权人:   UNIV TIANJIN POLYTECHNIC, UNIV TIANJIN POLYTECHNIC
  • 国际专利分类:   C08F220/18, C08F292/00, C09K005/06
  • 专利详细信息:   CN106832156-A 13 Jun 2017 C08F-292/00 201759 Pages: 13 Chinese
  • 申请详细信息:   CN106832156-A CN10107662 27 Feb 2017
  • 优先权号:   CN10107662

▎ 摘  要

NOVELTY - The preparation method of temperature-sensitive graphene oxide involves uniformly dispersing graphene oxide in dispersant, adding reaction monomer and graphene oxide dispersion liquid to reaction vessel, stirring, passing inert gas, removing oxygen in the reaction vessel, then dripping initiator, stirring and reacting, dissolving initiator and reaction monomer in the dispersion liquid, precipitating the reaction mixture in alcohol solvent, leaving and collecting precipitate (I), dissolving precipitate (I) in solvent as dispersant, centrifuging and vacuum drying. USE - The method is useful for preparing temperature-sensitive graphene oxide (claimed). ADVANTAGE - The method enables preparation of temperature-sensitive graphene oxide with excellent phase transition enthalpy and thermal stability. DETAILED DESCRIPTION - The preparation method of temperature-sensitive graphene oxide involves uniformly dispersing graphene oxide in dispersant to obtain 0.5-1.5 mg/ml graphene oxide dispersion liquid, adding 0.15-0.6 %mass reaction monomer and graphene oxide dispersion liquid to reaction vessel, stirring, passing inert gas, removing oxygen in the reaction vessel, then dripping initiator, stirring at 70 degrees C and reacting to obtain reaction mixture, where the reaction monomer comprises n-alkyl methacrylate and n-alkyl acrylate, dissolving initiator and reaction monomer in the dispersion liquid, precipitating the reaction mixture in alcohol solvent, leaving and collecting the precipitate (I), dissolving precipitate (I) in solvent as dispersant and centrifuging until the supernatant is colorless, and collecting the precipitate (II), and dissolving the precipitate (II) in acetone or ethyl acetate, centrifuging and collecting the precipitate (III), and vacuum drying. An INDEPENDENT CLAIM is included for temperature-sensitive graphene oxide prepared by the method.