Polymer nanocomposites (PNCs) have become an exciting field of current research
and have attracted a huge interest among both academia and industry
during the last few decades. However, the multifunctional single-nanocomposite
film exhibiting the combination of desired structure and properties
still remains a big challenge. Herein, we report a novel strategy
to address these problems by using versatile polymer glycidyl methacrylate
(GMA) as a bridging medium between the filler and the polymer matrix,
resulting in high density of interfaces as well as strong interactions,
which lead to generation of tunable thermal, mechanical, and electrical
properties in the materials. The nanocomposites prepared by GMA bridging
exhibit the remarkable combination of thermal (
T
d
= 342.2 °C,
T
g
= 150.1 °C
), mechanical (
E
= 7.6 Gpa and
H
= 0.45 Gpa ) and electrical (σ = 3.15 × 10
−5
S/cm) properties. Hence, the conjugation approaches related to GMA
bridging facilitate a new paradigm for producing multifunctional polymer
nanocomposites having a unique combination of multifunctional properties,
which can be potentially used in next-generation polymer-based advanced
functional devices.
Herein, we report the synthesis of nanocomposites (NCs) prepared by azide-functionalized polystyrene ( Az-f-PS) coupled with alkyne-functionalized nanographite platlets (Alk-f-NGPs) by using copper(I) catalyzed azide-alkyne click chemistry. Linear polystyrene (PS) was functionalized with azide moiety after bromine-termination of PS through atom transfer radical polymerization (ATRP) using CuBr/2, 2'-bipyridyl as catalyst. The nanographite platelets (NGPs) were formed from graphite flakes through intercalation followed by functionalized with alkyne moiety. The structure and micromorphology of prepared NCs were confirmed by NMR, FTIR, Raman, XRD, TGA, SEM, TEM and AFM techniques. The electrical properties of the click nanocomosites (C-NCs) were investigated and the C-NCs were found to posses the resistance of 1.08E+08 at 1wt% filler (NGPs) loading. The C-NCs with fast response (~3s), rapid recovery (~60s) and excellent repeatability at room temperature provide novel materials for chemiresistive sensors for detection of H2O2 vapors.Recently, click chemistry, using Cu (I)-catalyzed (3+2) Huisgen dipolar cycloaddition has received enormous attention in polymer and material science. In particular the functionalization of polymer matrix and fillers using click chemistry is the recent and potential technique to achieve
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