Grafting conductive polymers on graphene oxide through cross-linker: a stepwise approach,Journal of Materials Chemistry A

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Grafting conductive polymers on graphene oxide through cross-linker: a stepwise approach
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-06-29 , DOI: 10.1039/d0ta05489e
Rizwan Khan _{1,

2,

3,

4} , Yuta Nishina _{1,

2,

3,

4,

5}

Affiliation

A three-step reaction furnished a composite of graphene and a conductive polymer. In the first step, graphene oxide was modified with a diamine, which acted as a linker for polymer attachment. In the second step, an initiating site was attached to the free amine of the linker. Finally, a polymer was grown from the initiation site, and graphene oxide was reduced during polymer growth. The method does not require any catalyst, acid, or reducing agent, furnishing the graphene–polymer composite in a straightforward procedure. Various instrumental techniques, including step-by-step AFM analysis, were used to characterize the structure of the products in each step and confirm the covalent functionalization among graphene oxide, cross-linker, and polymer. The average surface height was sequentially increased after each step, indicating the success of the sequential reactions. The graphene–polymer composite showed excellent electrochemical performance and stability compared with a composite prepared by physical mixing of graphene and polymer.

中文翻译：

通过交联剂在氧化石墨烯上接枝导电聚合物：逐步方法

三步反应提供了石墨烯和导电聚合物的复合物。第一步，用二胺修饰氧化石墨烯，该二胺用作聚合物连接的连接基。在第二步中，将起始位点连接到接头的游离胺上。最终，从起始位点生长出聚合物，并且在聚合物生长期间氧化石墨烯被还原。该方法不需要任何催化剂，酸或还原剂，只需简单的步骤即可提供石墨烯-聚合物复合材料。各种仪器技术（包括逐步AFM分析）用于表征每个步骤中产品的结构，并确认氧化石墨烯，交联剂和聚合物之间的共价官能化。每个步骤后，平均表面高度依次增加，表示顺序反应成功。与通过物理混合石墨烯和聚合物制备的复合材料相比，石墨烯-聚合物复合材料显示出优异的电化学性能和稳定性。

更新日期：2020-07-14

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