4 results about "Two-dimensional polymer" patented technology

The present disclosure relates to a two-dimensional polymeric fullerene and preparation method thereof, wherein the preparation method includes the following steps: providing metal intercalated polymeric fullerene; replacing metal ions in the metal intercalated polymeric fullerene with quaternary ammonium salts. The preparation method of the two-dimensional polymeric fullerene of an embodiment of the present application has simple process and low cost, which can achieve large-scale preparation of two-dimensional polymeric fullerene.

This application discloses a two-dimensional polymer thin film based on reactive diffusion theory, its preparation method, and its applications. The film exhibits a typical bilayer structure: the lower layer is a continuous and dense covalent organic framework substrate film with good crystallinity; the upper layer is a cyclic / honeycomb Turing structure formed by the orderly assembly of nanoparticles, exhibiting strong periodicity and high uniformity. The preparation method employs gas-liquid interface reactive diffusion: the monomer is dissolved in a mixed solvent of DMF and chlorobenzene, and acetic acid is used as a catalyst, which is then dropped onto the surface of deionized water. By controlling the monomer concentration (5 mg / mL), molar ratio (2:3), drop volume (15 μL), and diffusion resistance, the Turing structure can be precisely controlled. This invention features a mild process, can be used for large-area preparation, and produces thin films with regular structures and excellent stability. It can be directly applied to flexible electronics, membrane separation, sensing, and catalysis, effectively solving the technical bottlenecks of uncontrollable morphology, low crystallinity, and difficulty in large-scale production of traditional two-dimensional polymer thin films.

The application discloses a kind of based on schiff base two-dimensional polymer composite membrane osmotic energy conversion device and its application.Schiff base two-dimensional polymer composite membrane is schiff base two-dimensional polymer / cellulose nanofiber composite membrane, which is prepared by interfacial superassembly strategy, has double nano ion channel and adjustable surface charge characteristics.The composite membrane is assembled between double conductivity cell, and the ion transport and osmotic energy conversion performance are tested under the concentration gradient of simulated seawater (0.5 M NaCl) and river water (0.01 M NaCl).It has a high output power density of 5.62 W / m 2 , and has good durability and cycle stability.The application provides a new intelligent nanochannel platform for efficient capture of blue osmotic energy.

The application discloses a kind of microporous metal organic framework materials and preparation and rare gas separation method, belong to chemical adsorption separation technical field, microporous metal organic framework material is made of divalent metal ion, heterocyclic dicarboxylic acid ligand and nitrogen-containing heterocyclic ligand coordination construction;Divalent metal ion and heterocyclic dicarboxylic acid ligand coordination forms two-dimensional polymer, nitrogen-containing heterocyclic ligand as pillar, by with two-dimensional polymer coordination forms three-dimensional framework structure.Microporous metal organic framework material is used as adsorbent, and is contacted with rare gas mixed gas phase, realizes to high polarity rare gas identification capture, reaches the separation and purification of rare gas.The present application realizes the accurate control of pore chemistry electrostatic environment by changing different ligand and its functional group substituent, so as to realize the selective separation of xenon / krypton and helium / neon and other rare gas.