Issue 85, 2015

Polymer nanocomposites using click chemistry: novel materials for hydrogen peroxide vapor sensors

Abstract

Herein, we report the synthesis of nanocomposites (NCs) prepared by azide-functionalized polystyrene (Az-f-PS) coupled with alkyne-functionalized nanographite platelets (Alk-f-NGPs) by using copper(I) catalyzed azide–alkyne click chemistry. Linear polystyrene (PS) was functionalized with an azide moiety after bromine-termination of PS through atom transfer radical polymerization (ATRP) using CuBr/2,2′-bipyridyl as a catalyst. The nanographite platelets (NGPs) were formed from graphite flakes through intercalation followed by functionalization with an alkyne moiety. The structure and micromorphology of the prepared NCs were confirmed by NMR, FTIR, Raman, XRD, TGA, SEM, TEM and AFM techniques. The electrical properties of the click nanocomposites (C-NCs) were investigated and the C-NCs were found to posses the resistance of 1.08 × 108 Ω at 1 wt% NGPs loading. The C-NCs with fast response (∼3 s), rapid recovery (∼60 s) and excellent repeatability at room temperature provide novel materials for chemiresistive sensors for detection of H2O2 vapors.

Graphical abstract: Polymer nanocomposites using click chemistry: novel materials for hydrogen peroxide vapor sensors

Supplementary files

Article information

Article type
Paper
Submitted
09 Jun 2015
Accepted
30 Jul 2015
First published
30 Jul 2015

RSC Adv., 2015,5, 69573-69582

Polymer nanocomposites using click chemistry: novel materials for hydrogen peroxide vapor sensors

P. Mazumdar, S. Rattan and M. Mukherjee, RSC Adv., 2015, 5, 69573 DOI: 10.1039/C5RA10952C

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