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Creation of Centimeter-Sized 2 D Crystalline Film by Crystallization of Homopolymer in Solution
Ming Li1, Zefei Peng1, Jingjing Hou1
1Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Ministry of Education & Hubei Key Laboratory of Polymer Materials & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China.
Abstract:
The 2 D assembly of polymers to form free-standing and large crystalline films is quite appealing but very challenging. Although there have been some works using interface templates, reports of in situ assembly in solution are still rare. Herein, a simple strategy is developed for the creation of a free-standing and centimeter-sized 2 D crystalline polymer film through crystallization of an amphiphilic brush polydiacetylene (PDA) in solution. The film exhibits good shape memory, a low dielectric constant, and good carrier mobility. This strategy may be applied extensively to produce a variety of other macroscopic 2 D crystalline polymer films for applications in electronics, catalysis, and so on.
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