Polymer coating of carboxylic acid functionalized multiwalled carbon nanotubes via reversible addition-fragmentation chain transfer mediated emulsion polymerization

被引:47
作者
Duc Nguyen [1 ]
Such, Chris H. [2 ]
Hawkett, Brian S. [1 ]
机构
[1] Univ Sydney, Fac Sci, Sch Chem, KCPC, Sydney, NSW 2006, Australia
[2] DuluxGrp Australia, Clayton, Vic, Australia
关键词
amphiphilic; carbon nanotubes; encapsulation; reversible addition-fragmentation chain transfer (RAFT); nanocomposites; coatings; TRANSFER RADICAL POLYMERIZATION; SURFACE RAFT POLYMERIZATION; COMPOSITES; ENCAPSULATION; NANOHYBRIDS; FABRICATION; SHELLS; WATER;
D O I
10.1002/pola.26389
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In this work, successful polymer coating of COOH-functionalized multiwalled carbon nanotubes (MWCNTs) via reversible addition fragmentation chain transfer (RAFT) mediated emulsion polymerization is reported. The method used amphiphilic macro-RAFT copolymers as stabilizers for MWCNT dispersions, followed by their subsequent coating with poly(methyl methacrylate-co-butyl acrylate). Poly(allylamine hydrochloride) was initially used to change the charge on the surface of the MWCNTs to facilitate adsorption of negatively charged macro-RAFT copolymer onto their surface via electrostatic interactions. After polymerization, the resultant latex was found to contain uniform polymer-coated MWCNTs where polymer layer thickness could be controlled by the amount of monomer fed into the reaction. The polymer-coated MWCNTs were demonstrated to be dispersible in both polar and nonpolar solvents. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013
引用
收藏
页码:250 / 257
页数:8
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