Synthesis of hydrophobic and hydrophilic graphitic carbon nanofiber polymer brushes

被引：37

作者：

Li, L ^{[1
]}

Lukehart, CM ^{[1
]}

机构：

[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA

来源：

CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 01期

关键词：

D O I：

10.1021/cm051720d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Herringbone graphitic carbon nanofiber (GCNF)-polymer brushes are prepared by atom transfer radical polymerization (ATRP) using the "grafted-from" synthesis strategy. Polymerization of acrylate esters occurs at surface sites covalently derivatized with ATRP initiators to form GCNF-poly(n-butyl acrylate), GCNF-poly(isobutyl methacrylate), and GCNF-poly(tert-butyl acrylate) polymer brushes. Acid hydrolysis of the GCNF-poly(tert-butyl acrylate) polymer brush gives a GCNF-poly(acrylic acid) polymer brush. Solution dispersibilities of GCNF-polymer brushes are controlled by the solubility properties of the polymer brush component, with GCNF-poly(acrylate ester) brushes being hydrophobic, whereas the GCNF-poly(acrylic acid) brush is hydrophilic. Because of the unique atomic structure of GCNFs, a high surface density (ca. 3 chains/10 nm(2) of GCNF surface) of polymer brush functionalization is realized.

引用

页码：94 / 99

页数：6

共 18 条

[1] Polymer-grafted multiwalled carbon nanotubes through surface-initiated polymerization [J].