Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(<italic style="font-style: italic">p</italic>-phenyleneethynylene-<italic style="font-style: italic">alt</italic>-<italic style="font-style: italic">m</italic>-phenyleneethynylene)

Yan-qin Huang; Kuang Sheng; Hui-lin Ni; Kun-lin Liu; Rui Zhang; Qu-li Fan; Wei Huang

doi:10.11777/j.issn1000-3304.2022.22009

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Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(p-phenyleneethynylene-alt-m-phenyleneethynylene)

Research Article | 更新时间：2024-10-08

- Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(p-phenyleneethynylene-alt-m-phenyleneethynylene)
- ACTA POLYMERICA SINICA Vol. 53, Issue 6, Pages: 683-690(2022)
- 作者机构：
  
  1.南京邮电大学有机电子与信息显示国家重点实验室信息材料与纳米技术研究院南京 210023
  2.西北工业大学柔性电子研究院西安 710072
  3.东南大学附属中大医院眼科南京 210009
- 作者简介：
  
  Yan-qin Huang, E-mail: iamyqhuang@njupt.edu.cn
  Wei Huang, E-mail: provost@nwpu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2022.22009
  CLC：
- Published：20 June 2022，
  
  Published Online：27 April 2022，
  
  Received：09 January 2022，
  
  Accepted：21 February 2022
- 稿件说明：
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黄艳琴,盛况,倪慧琳等.溶剂对聚(对亚苯基亚乙炔基-alt-间亚苯基亚乙炔基)螺旋缠绕单壁碳纳米管的影响[J].高分子学报,2022,53(06):683-690.

Huang Yan-qin,Sheng Kuang,Ni Hui-lin,et al.Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(p-phenyleneethynylene-alt-m-phenyleneethynylene)[J].ACTA POLYMERICA SINICA,2022,53(06):683-690.
黄艳琴,盛况,倪慧琳等.溶剂对聚(对亚苯基亚乙炔基-alt-间亚苯基亚乙炔基)螺旋缠绕单壁碳纳米管的影响[J].高分子学报,2022,53(06):683-690. DOI： 10.11777/j.issn1000-3304.2022.22009.

Huang Yan-qin,Sheng Kuang,Ni Hui-lin,et al.Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(p-phenyleneethynylene-alt-m-phenyleneethynylene)[J].ACTA POLYMERICA SINICA,2022,53(06):683-690. DOI： 10.11777/j.issn1000-3304.2022.22009.

摘要

水溶性聚(对亚苯基亚乙炔基-

alt

-间亚苯基亚乙炔基) (meta-PPEs)可与单壁碳纳米管(SWCNTs)组装成螺旋缠绕复合结构，从而改善SWCNTs的溶解性并实现选择性分离. 为深入理解这种明确形态超分子结构的形成机理，本文利用阳离子型水溶性meta-PPE-N

Me与SWCNTs在不同比例二甲基亚砜/水(DMSO/H

O)的混合溶剂中制备复合材料，深入探索聚合物结构、溶剂成分对复合结构形态和稳定性的影响. 通过紫外-可见-近红外吸收光谱、荧光发射光谱、透射电镜、拉曼光谱和红外光谱等研究表明，当DMSO比例为70%时，该聚合物呈现从无规线团到螺旋构象的突变；此时自组装形成螺旋构象的驱动力较大，因此聚合物在自身开始形成螺旋疏水空腔的过程中对SWCNTs产生螺旋缠绕，疏水效应和

作用进一步增强，形成稳定的复合材料；然而在其他比例混合溶剂中并没有形成明显的螺旋缠绕超分子结构. 该研究结果将为SWCNTs的可控修饰和应用提升提供一定的理论指导.

Abstract

Water-soluble poly(

-phenyleneethynylene-

alt

-phenyleneethynylene)s (meta-PPEs) can wrap single-walled carbon nanotubes (SWCNTs) helicall

y to improve the solubility of SWCNTs and realize highly selective dispersion. In order to deeply understand the formation mechanism of such well-defined supermolecular structure

we prepared the composites of SWCNTs and the cationic water-soluble meta-PPE-N

Me in DMSO/H

O mixed solvents with different ratios. The effects of polymer structure and composition of mixed solvents on the morphology and stability of the composite structure were deeply explored. Studies on the ultraviolet-visible-near infrared absorption spectroscopy

fluorescence spectroscopy

transmission electron microscopy

Raman spectroscopy and infrared spectroscopy showed that

when the ratio of DMSO was 70%

the polymer exhibited a sudden change from random coil to helical conformation. At this time

the driving force to self-assemble into helical conformation was relatively large

so the polymer wrapped SWCNTs helically in the process of forming a helical hydrophobic cavity itself

and the hydrophobic effect and

interaction were further enhanced to form a stable composite. However

no obvious helical wrapping supermolecular structure was formed in the mixed solvents with other ratios. These results will provide some theoretical guidance for the controllable modification and application improvement of SWCNTs.

关键词

单壁碳纳米管水溶性聚(亚苯基亚乙炔基)复合材料螺旋缠绕

Keywords

Single-walled carbon nanotubesWater-soluble poly(phenyleneethylene)sCompositeHelical wrapping

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Effects of Solvent on Helical Wrapping of Single-walled Carbon Nanotubes by Poly(p-phenyleneethynylene-alt-m-phenyleneethynylene)

DOI：10.11777/j.issn1000-3304.2022.22009

摘要

Abstract

关键词

Keywords

references