Synthesis and characterization of pyrene bearing amphiphilic miktoarm star polymer and its noncovalent interactions with multiwalled carbon nanotubes

被引：30

作者：

Durmaz, Hakan ^{[1
]}

Dag, Aydan ^{[1
]}

Tunca, Umit ^{[1
]}

Hizal, Gurkan ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem, TR-34469 Istanbul, Turkey

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2012年 / 50卷 / 12期

关键词：

amphiphilic miktoarm star polymer; atom transfer radical polymerization; click chemistry; multiwalled carbon nanotubes; noncovalent functionalization; pyrene; Polystyrene (PS); poly(methyl methacrylate) (PMMA); poly(ethylene glycol) (PEG); TRANSFER RADICAL POLYMERIZATION; TERMINATOR MULTIFUNCTIONAL INITIATOR; OPENING METATHESIS POLYMERIZATION; CATALYST-FUNCTIONALIZED SINGLE; BROMO CLICK CHEMISTRY; DENDRITIC MACROMOLECULES; SIDEWALL FUNCTIONALIZATION; CONVENTIONAL MONOMERS; CONJUGATED POLYMERS; DIVERGENT SYNTHESIS;

D O I：

10.1002/pola.26016

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel amphiphilic miktoarm star polymer, polystyrene-poly(ethylene glycol)-poly(methyl methacrylate), bearing a pyrene group at the end of PS arm (Pyrene-PS-PEG-PMMA) was successfully synthesized via combination of atom transfer radical polymerization and click chemistry. The structure and composition of the amphiphilic miktoarm star polymer were characterized by gel permeation chromatography and 1H NMR. The functionalization of multiwalled carbon nanotubes (MWCNTs) via pp stacking interactions with pyrene-PS-PEG-PMMA miktoarm star polymer was accomplished and the resulting polymer-MWCNTs hybrid was analyzed by using 1H NMR, UVvis, fluorescence spectroscopy, and thermal gravimetric analysis. The high-resolution transmission electron microscopy and analytical techniques aforementioned confirmed that the noncovalent functionalization of MWCNT's with the amphiphilic miktoarm star polymer was successfully achieved. The MWCNT/pyrene-PS-PEG-PMMA exhibited significant dispersion stability in common organic solvents such as dimethyl formamide, chloroform, and tetrahydrofuran. (c) 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012

引用

页码：2406 / 2414

页数：9

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