Surface functionalization of nanodiamond particles via atom transfer radical polymerization

被引：116

作者：

Li, Lang

Davidson, J. L.

Lukehart, Charles M.

机构：

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

[2] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA

来源：

CARBON | 2006年 / 44卷 / 11期

关键词：

diamond; surface treatment; transmission electron microscopy; functional groups; surface properties;

D O I：

10.1016/j.carbon.2006.02.023

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：

Ultradispersed diamond (UDD)/polymer brushes having excellent solution dispersibilities are prepared by atom transfer radical polymerization (ATRP) using the "grafting-from" synthesis strategy. ATRP initiators, covalently attached to oxidized surface carbon atoms of UDD aggregates using esterification chemistry, initiate polymerization of methacrylate monomers to form hydrophobic UDD/poly(iso-butyl methacrylate) and UDD/poly(tert-butyl methacrylate) polymer brushes. Acid hydrolysis of a UDD/poly(tert-butyl methacrylate) polymer brush affords a hydrophilic UDD/poly(methacrylic acid) polymer brush. Based on surface area measurements and GPC data, the calculated surface density of a representative UDD/polymer brush material is ca. five polymer chains/100 nm(2). A wide variety of UDD/polymer brush materials having controlled dispersibility and functional group reactivity are now potentially available using this synthesis strategy. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2308 / 2315

页数：8

共 19 条

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