Challenges in Liquid‐Phase Exfoliation,Processing, and Assembly of Pristine Graphene

Recent developments in the exfoliation, dispersion, and processing of pristine graphene (i.e., non‐oxidized graphene) are described. General metrics are outlined that can be used to assess the quality and processability of various “graphene” products, as well as metrics that determine the potential for industrial scale‐up. The pristine graphene production process is categorized from a chemical engineering point of view with three key steps: i) pretreatment, ii) exfoliation, and iii) separation. How pristine graphene colloidal stability is distinct from the exfoliation step and is dependent upon graphene interactions with solvents and dispersants are extensively reviewed. Finally, the challenges and opportunities of using pristine graphene as nanofillers in polymer composites, as well as as building blocks for macrostructure assemblies are summarized in the context of large‐scale production.     

石墨烯改性双噻唑聚合物及其配合物的合成与性能

合成了一种含功能化石墨烯的双噻唑聚合物(SDS-GNS)及其配合物SDS-GNS-Cu2+,利用红外光谱、X射线衍射分析等对其结构进行了表征;通过综合热分析得出SDS-GNS和SDS-GNS-Cu2+的失重速率分别为4.8%/℃和5.7%/℃,说明聚合物SDS-GNS和配合物SDS-GNS-Cu2+具有较好的热稳定性;通过常温测定聚合物SDS-GNS和配合物SDS-GNSCu2+的电化学特性,采用交流阻抗拟合方法,获得SDS-GNS和SDS-GNS-Cu2+的电导率分别为2.03×10-6S/cm和2.32×10-6S/cm。