Synthesis Of Polymers And Graphene Materials With Large BET Surface Areas And Their Porperties

Porous materials mainly consisting of microporous, mesoporous and macroporous materials arebeing actively pursued as an important class of materials in various fields, potentially for using in theareas of adsorption, separation, gas storage, biocatalysis, and sensors because of their large BETsurface area, abundant porous structures, and uniform pore size distribution. Graphene material alsohas Large BET surface area. It has attracted much attention due to its excellent optical and electricalproperties. This paper aims to explore novel materials with Large BET surface area, includingnanoporous polydivinylbenzene materials and graphene composite materials, by novel syntheticroutes. We studied the structures and the properties of the materials in order to meet the requirementsunder various conditions.Firstly, as a promising member of the porous materials family, organic porous materials havebeen the subject of intense recent interests due to their large surface areas and excellent adsorptionproperties. Unlike inorganic nanoporous materials, mesoporous materials with organic frameworksexhibit attractive properties in treating organic compounds and biomaterials owing to their oleophilicnature. The distinct advantages have triggered a rapid development of nanoporous polymers.However, complex synthesis procedures and the high cost of raw materials further limit theindustrial applications of the nanoporous polymers. Thus, it is still challenging to develop a kind ofporous polymers with more convenient synthesis process, more appropriate raw materials prices andmuch better adsorption abilities for organic compounds. For example, our research group hadsucceeded synthesis of porous polydivinylbenzene materials with superoleophilic andsuperhydrophobic properties, which showed excellent adsorption properties for organic compounds.However, the superhydrophobicity of this kind of nanoporous polymers strongly hinders theadsorption of biomolecules in aqueous solution. Herein, we have demonstrated successful synthesisof nanoporous polydivinylbenzene with carboxyl/amido as functional groups for surface wettabilitytuning. These materials have abundant nanopores and high BET surface areas, and therefore, showhigh adsorptive rate and capacity for myoglobin.Secondly, nowadays much less effort has been devoted to the research on hierarchicallynanoporous polymers structures and the controllable tailoring. In this paper, we successfullysynthesized controllable hierarchically porous polymers in acetone media through a simplesolvothermal treatment. Moreover, a controllable transition from macro/mesoporosity tomeso/microporosity was observed by changing the amount of acetone. The resultant materials reveal abundant nanopores, large BET surface areas, and superhydrophobic surfaces, thus they canpotentially work as excellent adsorbents for indoor volatile organic compounds removal.Thirdly, we present a solvothermal synthesis of nanoporous polydivinylbenzene (PDVB) as apolymer chalk for painting superhydrophobic surfaces arbitrarily on various surfaces. The facilepreparation rightly conforms to the trend to make the fabrication process easy and extensivelyapplicable. Through nanoporous polymer coating, superhydrophobicity can be readily transferred tosubstrates with various shape and features, which provides a convenient route to acquiresuperhydrophobic surfaces.At last, we use Co-Al-LDH as a template and4-vinylbenzenesulphonate as precursors,successful synthesis of graphene with large BET surface area by polymerization of the precursorsduring temperature-programmed.