11results about How to "Extended conjugation properties" patented technology

The invention relates to the field of covalent organic framework materials and photocatalytic organic reactions, in particular to a COF material for improving photo-generated charge separation and a preparation method and application of the COF material. According to the present invention, 1, 3, 5-tri (4-aminophenyl) benzene (TAPB) is adopted as a donor unit, and a novel D-A type multi-bibenzothiadiazole TPAB-DTT-COF covalent organic framework material using a conjugated unit 2, 1, 3-benzothiadiazole as an acceptor unit is prepared; tAPB is an excellent electron donor unit which is widely used at present, polybiphenyl thiadiazolyl is an electron withdrawing group, the combination and matching of TAPB and polybiphenyl thiadiazolyl enhance the electronegativity difference value in molecules, reduce the exciton binding energy, promote the transfer of electrons from TAPB to a DTT unit, enhance the in-plane transmission and exciton separation efficiency, dissociate excitons under illumination, and improve the efficiency of electron transfer. The TAPB-DTT-COF material has the advantages that the TAPB-DTT-COF material has obvious photocurrent response signal, more obvious charge transfer performance and good photocatalytic performance;

The invention provides a phenazine-quinoxaline organic electrode material, and belongs to the technical field of aqueous zinc ion battery electrode materials, and the phenazine-quinoxaline organic electrode material is synthesized from 2, 3-diaminophenazine and 2, 5-dihydroxy-1, 4-benzophenone through a dehydration condensation reaction. The organic electrode material can be used for manufacturing a positive electrode of an aqueous zinc ion battery, and shows relatively high reversible specific capacity, relatively long cycle life, relatively good rate capability and relatively good wide temperature range performance. The invention also provides an application of the phenazine-quinoxaline organic electrode material in preparation of an aqueous zinc ion battery.

The present invention relates to a porphyrin-based two-dimensional graphyne nonlinear optical thin film material and its preparation and application. By constructing an interface with a mutually immiscible aqueous phase and an organic phase, two monomers undergo a polymerization reaction at the interface under the action of a catalyst, thereby obtaining a large-scale defect-free two-dimensional graphyne nonlinear optical thin film material. Compared with the prior art, the catalyst system used in the present invention is highly efficient, and the obtained thin film material can be easily transferred to various substrates for subsequent device preparation. The optical limiting threshold of the porphyrin-based graphyne thin film material under ultrafast pulse laser conditions is significantly lower than that of most reported optical limiting materials, and has great application potential in the field of optical limiters.

Disclosed are aromatic amine derivative organic electroluminescent materials and devices thereof. The compound is a pyrene compound substituted with an aromatic amine, wherein substituents are introduced into the N-ortho positions of both aryl groups of the aromatic amine of the compound, and a (hetero)aryl group is introduced into the N-para position of one of the aryl groups, and a substituent is introduced into the N-meta position of the other aryl group. The compound can be used as a luminescent material in an organic electroluminescent device. These novel compounds can provide better device performance, such as device life and external quantum efficiency. Also disclosed is an electroluminescent device and a compound formula.

The invention discloses a metal complex acceptor material, a preparation method thereof and a photoelectric device, the structural general formula of the metal complex acceptor material is # imgabs0 #, M is a heavy metal ion, and R1 is C1-C25 alkyl; m1 is selected from one of the following groups: # imgabs1 # R2 is phenyl, and R2 is located at any possible position on a ring where R2 is located; ar is selected from one of the following groups: # imgabs2 # R3 is alkyl of C1-C20; wherein the dashed line represents a connection site. According to the non-fullerene metal complex acceptor material provided by the invention, metal ions are taken as a symmetric center, electron withdrawing groups consisting of benzothiadiazole are arranged at the upper part and the lower part, and the whole acceptor material is of a vertically symmetric structure, so that electron transmission on a plane is more efficient, and meanwhile, the electron structure of the acceptor material can be stabilized, so that carriers in the acceptor material are more stable; the stability of the acceptor material is further improved, and the photoelectric conversion efficiency of the prepared solar cell is close to 18%.

The invention belongs to the technical field of perchlorate treatment, and discloses application of graphene oxide / metal organic framework modified magnetic nanoparticles as a perchlorate extraction material, and an application method comprises the following steps: adding the graphene oxide / metal organic framework modified magnetic nanoparticles Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 into perchlorate wastewater; according to the method, perchlorate is rapidly extracted under the action of external mechanical stirring, and then used Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 is separated and recycled by virtue of a magnetic field, so that purified water is obtained. According to the Fe3O4 (at) GO (at) MIL-53 (Al)-NH2, magnetic ferroferric oxide serves as an inner core, a composite functional group composed of graphene oxide and a metal organic framework material is arranged on the surface, and the Fe3O4 (at) GO (at) MIL-53 (Al)-NH2 is used for extracting perchlorate and has the advantages of being high in extraction speed and extraction efficiency, easy to regenerate and the like.

Disclosed are aromatic amine derivative organic electroluminescent materials and devices thereof. The compound is a pyrene compound substituted with an aromatic amine, wherein a substituent is introduced into the N-ortho position of one aromatic group of the aromatic amine and a (hetero) aromatic group containing an ortho substituent is introduced into the N-para position, and a substituent is introduced into the N-ortho position of another aromatic group, which can increase the conjugation and stability of the molecule while reducing the planarity of each conjugated system of the molecule. The compound can be used as a luminescent material in an organic electroluminescent device. These novel compounds can provide better device performance, such as device life and external quantum efficiency. Also disclosed is an electroluminescent device and a compound formula.

The invention provides a triarylamine compound containing a benzimidazole structure and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. When the triarylamine compound is applied to the organic electroluminescent device as a main body material, the driving voltage of the organic electroluminescent device can be reduced, the luminous efficiency and brightness of the organic electroluminescent device can be improved, and the service life of the organic electroluminescent device can be prolonged.

This invention discloses an amino compound with a benzophenanthrene furan group and an organic light-emitting device, selected from compounds of formula 1: Al-A 10 One of the groups is derived from Formula 2, where * represents a bond connected to the basic skeleton in Formula 1. When A2 is derived from a group in Formula 2, L1 is a para-phenylene group, R1 and R2 are derived from single bonds, substituted or unsubstituted C5-C24 aromatic hydrocarbon groups, substituted or unsubstituted C5-C24 heteroaromatic hydrocarbon groups, and Ar1 and Ar2 are derived from C5-C30 aromatic hydrocarbon groups, substituted or unsubstituted C5-C30 heteroaromatic hydrocarbon groups. In this invention, the triarylamine is para-linked to a transition benzene ring with benzo[a]phenanthrenefuran. This benzene ring linkage enhances the overall stability of the target molecule, strengthens the conjugation of the molecule, and increases the stacking property of the molecule in organic light-emitting materials. This invention also sets phenanthrene, naphthyl, or dibenzothiophene groups on the other two substituents of the triarylamine, affecting the electron affinity and electron transport properties of the triarylamine and further extending its lifespan.

The invention discloses preparation of soft wear-resistant strong-permeability waterborne polyurethane and application of the soft wear-resistant strong-permeability waterborne polyurethane in textiles. Aiming at the problems that most waterborne polyurethane products in the market are poor in fabric permeation effect, easy to float on the surface of the fabric, poor in adhesion to the fabric, poor in durability, poor in wear resistance, hard in hand feeling and capable of influencing the quality of the fabric product, the preparation method comprises the following steps of: using self-made polyfunctional amorphous macromolecular polyether polyol as a raw material; the soft wear-resistant strong-permeability waterborne polyurethane emulsion is prepared, the adhesiveness of resin to fabrics is successfully improved, and meanwhile, the soft hand feeling and wear resistance of the resin coating fabrics are improved.

The invention relates to the technical field of organic synthesis, and particularly discloses a preparation method of trichlorotoluene. The preparation method of the trichlorotoluene comprises the following steps: under the action of an initiator and a screening agent, introducing chlorine into toluene serving as a raw material, and carrying out a chlorination reaction to obtain the trichlorotoluene, the shielding agent comprises at least one of sulfur, red phosphorus or phosphorus trichloride. Under the action of the shielding agent, in cooperation with the initiator, trace metal ions in a reaction system can be shielded, the possibility that iron ions and chloride ions react to form ferric trichloride is eliminated, ring chlorination catalysis is avoided, impurities are reduced, the conjugation effect of alpha-site free radicals and benzene rings is enhanced, smooth side chain chlorination reaction is guaranteed, and the reaction efficiency is improved. Therefore, the yield and the purity of trichlorotoluene are improved, the difficulty of subsequent rectification and purification and the treatment capacity of solid waste are reduced, the efficiency of vacuum rectification is obviously improved, the cost of the product is effectively reduced, the economic benefit is increased, and the method has better market application value.