NDLI: A facile route to electronically conductive polyelectrolyte brushes as platforms of molecular wires

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Back cover

Chemical Science Vol - 6 Issue - 2

Chemical Science Vol -5

Chemical Science Vol -4

Chemical Science Vol -3

Chemical Science Vol -2

Chemical Science Vol -1

A facile route to electronically conductive polyelectrolyte brushes as platforms of molecular wires

Content Provider	Royal Society of Chemistry (RSC)
Author	Wolski, Karol Zapotoczny, Szczepan Szuwarzyński, Michał
Copyright Year	2015
Abstract	A facile strategy for the synthesis of conjugated polyelectrolyte brushes grafted from a conductive surface is presented. Such brushes form a platform of molecular wires oriented perpendicularly to the surface, enabling efficient directional transport of charge carriers. As the synthesis of conjugated polymer brushes using chain-growth polymerization via a direct “grafting from” approach is very challenging, we developed a self-templating surface-initiated method. It is based on the formation of multimonomer template chains in the first surface-initiated polymerization step, followed by the second polymerization leading to conjugated chains in an overall ladder-like architecture. This strategy exploits the extended conformation of the surface-grafted brushes, thereby enabling alignment of the pendant polymerizable groups along the template chains. We synthesized a new bifunctional monomer and used the developed approach to obtain quaternized poly(ethynylpyridine) chains on a conductive indium tin oxide surface. A catalyst-free quaternization polymerization was for the first time used here for surface grafting. The presence of charged groups makes the obtained brushes both ionically and electronically conductive. After doping with iodine, the brushes exhibited electronic conductivity, in the direction perpendicular to the surface, as high as 10−1–100 S m−1. Tunneling AFM was used for mapping the surface conductivity and measuring the conductivity in the spectroscopic mode. The proposed synthetic strategy is very versatile as a variety of monomers with pendant polymerizable groups and various polymerization techniques may be applied, leading to platforms of molecular wires with the desired characteristics.
Starting Page	1754
Ending Page	1760
Page Count	7
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	6
Issue Number	3
Journal	Chemical Science
DOI	10.1039/c4sc04048a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Menshutkin reaction Chemical structure Molecular wire Polymerization Polymer Grafting Polyelectrolyte Chain-growth polymerization Surface conductivity Tin Dopant Monomer Iodine
Content Type	Text
Resource Type	Article
Subject	Chemistry

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From Self-Assembled Monolayers to Coatings: Advances in the Synthesis and Nanobio Applications of Polymer Brushes

Supramolecular Polymer Brushes.

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Uptake of pH-Sensitive Gold Nanoparticles in Strong Polyelectrolyte Brushes

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Grafting Hole-Transport Precursor Polymer Brushes on ITO Electrodes : Surface-Initiated Polymerization and Conjugated Polymer Network Formation of PVK

Effects of Amino Acid Side-Chain Length and Chemical Structure on Anionic Polyglutamic and Polyaspartic Acid Cellulose-Based Polyelectrolyte Brushes

A facile route to electronically conductive polyelectrolyte brushes as platforms of molecular wires

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A facile route to electronically conductive polyelectrolyte brushes as platforms of molecular wires