Preparation of poly 2-hydroxyethyl methaerylate functionalized carbon nanotubes as novel biomaterial nanocomposites

被引：62

作者：

Kumar, Nanjundan Ashok ^{[1
]}

Ganapathy, Hullathy Subban ^{[1
]}

Kim, Jong Su ^{[1
]}

Jeong, Yong Seok ^{[1
]}

Jeong, Yeon Tae ^{[1
]}

机构：

[1] Pukyong Natl Univ, Div Imaging Sci & Informat Engn, Pusan 608739, South Korea

来源：

EUROPEAN POLYMER JOURNAL | 2008年 / 44卷 / 03期

关键词：

carbon nanotubes; polyHEMA; surface functionalization; polymer-CNT nanocomposites;

D O I：

10.1016/j.eurpolymj.2007.12.009

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report a simple method for the functionalization of multi-walled carbon nanotubes (MWNTs) with a biomedically important polymer, poly(2-hydroxyethyl methacrylate) (poly(HEMA)), by chemical grafting of HEMA monomer followed by free radical polymerization. The nanotubes were first oxidized with a mixture of cone. nitric acid and Sulfuric acid (1:3), in order to obtain carboxylic acid functionalized MWNTs. Then the grafting of HEMA oil to the surface of MWNTs was carried by chemical functionalization of HEMA with acid chloride-bound nanotubes by esterification reaction. FT-IR was used to identify functionalization of -COOH and HEMA groups attached to the surface of the nanotubes. The presence of poly(HEMA) oil the nanotubes were confirmed by FESEM, TEM, and TGA analyses. Additionally, the dispersibility of the polymer functionalized nanotubes in methanol was also demonstrated. Considering the biomedical importance of poly(HEMA) and the recent successful in vivo studies oil CNTs, in future, these materials are expected to be useful in the pharmaceutical industry as novel biomaterials composites with potential applications in drug delivery. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：579 / 586

页数：8

共 28 条

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