Selectable and Releasable Noncovalent Functionalization of Semiconducting SWCNTs by Biethynyl‐2,5‐bis(dodecoxy)benzene Unit‐Containing Conjugated Copolymers,Macromolecular Chemistry and Physics

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Selectable and Releasable Noncovalent Functionalization of Semiconducting SWCNTs by Biethynyl‐2,5‐bis(dodecoxy)benzene Unit‐Containing Conjugated Copolymers
Macromolecular Chemistry and Physics ( IF 2.5 ) Pub Date : 2020-06-09 , DOI: 10.1002/macp.202000086
Xia Wei ₁ , Xieraili Maimaitiyiming ₁

Affiliation

A rigid structural unit diethynyl‐2,5‐bis(dodecoxy)benzene (DDB) is proposed to functionalize single‐walled carbon nanotubes (SWCNTs) with the assistance of pyrimidine ring. The effectiveness of conjugated polymer extraction of semiconducting SWCNTs is demonstrated by absorption and Raman spectroscopy. The protonated pyrimidine ring by the trifluoroacetic acid is used to reduce the interaction between polymer and SWCNTs that the bound wrapping polymer can be removed from the sorted SWCNTs, and molecular dynamics simulations of the binding ability of DDB and pyrimidine units to SWCNTs are conducted to further illustrate the strong binding ability of DDB units to SWCNTs. Therefore, this work provides an effective structural and theoretical reference for polymer separation or modification of semiconducting SWCNTs.

中文翻译：

乙炔基-2,5-双（十二氧基）苯单元共轭共聚物对半导体SWCNT的选择性和可释放非共价官能化

提出了一种刚性结构单元二乙炔基-2,5-双（十二烷氧基）苯（DDB），以借助嘧啶环功能化单壁碳纳米管（SWCNT）。通过吸收和拉曼光谱证明了共轭聚合物萃取半导体SWCNT的有效性。使用三氟乙酸将质子化的嘧啶环用于减少聚合物与SWCNT之间的相互作用，从而可以从分选的SWCNT中除去结合的包裹聚合物，并进一步进行了DDB和嘧啶单元与SWCNT结合能力的分子动力学模拟。说明了DDB单元与SWCNT的强大结合能力。因此，这项工作为聚合物分离或半导体SWCNT的改性提供了有效的结构和理论参考。

更新日期：2020-06-09

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