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Posted: Jun 26, 2017
From 1D polymers to 2D polymers
(Nanowerk News) Researchers in China report a facile, highly efficient, and versatile strategy for preparation of free-standing single-monomer-thick two-dimensional (2D) polymers in water without any aid.
The monolayer 2D polymer was conveniently obtained by self-assembly and photopolymerization of an amphiphilic rigid 1D polymer.
By characterizing the structure and the morphology of these sheets by electron microscope techniques and spectroscopic analyses, the team found that, compared with single-layer 2D supramolecular polymers, the single-layer 2D covalent polymers exhibited better mechanical stability as well as higher conductivity.
"Therefore, our work provides a powerful strategy for preparation of not only free-standing 2D supramolecular polymers but also 2D covalent polymers, especially conjugated 2D polymers with several nanometer thickness as conductive or semiconductive materials, which are very useful in many fields," the authors conclude.