Non-covalent dispersion of multi-walled carbon nanotubes in aqueous solution with hyperbranched polyethylene-g-poly(methacrylic acid)

被引：9

作者：

Deng, Zheng ^{[1
]}

Wang, Li ^{[1
]}

Yu, Haojie ^{[1
]}

Zhai, Xiaoting ^{[1
]}

Chen, Yongsheng ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Chem & Biol Engn, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China

来源：

RSC ADVANCES | 2016年 / 6卷 / 33期

关键词：

CATIONIC POLY(P-PHENYLENE ETHYNYLENE); TRANSFER RADICAL POLYMERIZATION; CHAIN WALKING POLYMERIZATION; DENDRITIC POLYETHYLENE; CANCER-THERAPY; FUNCTIONALIZATION; EFFICIENT; POLYMERS; SOLUBILIZATION; TRANSPORTERS;

D O I：

10.1039/c5ra27379j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon nanotubes (CNTs) have great potential applications in biomedical materials. However, the poor solubility of CNTs in water hinders their practical applications. Thus, an amphiphilic hyperbranched polyethylene-g-poly(methacrylic acid) (HBPE-g-PMAA) was synthesized to improve the solubility of multi-walled carbon nanotubes (MWCNTs) in water. The HBPE segment provided the CH-pi interactions between HBPE and MWCNTs, while the PMAA segment gave the de-bundled MWCNTs good solubility and stability. In this way, the bundled MWCNTs were found to be dispersed efficiently into individual nanotubes by the HBPE-g-PMAA. The dispersing efficiency of MWCNTs was evaluated by TGA, TEM, SEM and AFM. The maximum concentration of MWCNTs was found to be 135 mg L-1. Hence, the HBPE-g-PMAA was an efficient amphiphilic polymer-based dispersant for dispersion of MWCNTs in water, and might find potential application in biomedical systems and devices.

引用

页码：27682 / 27689

页数：8

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