8 results about "Charge-transfer complex" patented technology

The present invention relates to an electrolyte composition comprising a lithium salt, and a charge transfer complex formed from a precursor of said charge transfer complex, electron acceptor, and a precursor of said charge transfer complex, electron donor, said lithium salt being (fluorosulfonyl)(trifluoromethanesulfonyl) lithium imidide LiFTFSI, said precursor of said charge transfer complex, electron acceptor, being benzoquinone or one of its derivatives, and said precursor of said charge transfer complex, electron donor, being hydroquinone or one of its derivatives.It also relates to a process for preparing said electrolyte composition, the use of said electrolyte composition in a rechargeable lithium-metal battery or for the preparation of a solid electrolyte for a rechargeable lithium-metal battery, a solid electrolyte for a rechargeable lithium-metal battery comprising said electrolyte composition, and a rechargeable lithium-metal battery comprising said solid electrolyte. Figure to be published: Figure 1.

The present application relates to the technical field of polyimide film, in particular to a high-transparency high-temperature-resistant cellulose-based polyimide film and a preparation method thereof. In the present application, cellulose is used in the form of dianhydride compound or diamine compound to participate in the preparation of polyimide, the abundant aliphatic cyclic structure of cellulose is used to inhibit the formation of charge transfer complex between molecular chains, and the transparency of the film is significantly improved; at the same time, the rigid skeleton and hydrogen bond network of cellulose are used to maintain or improve the heat resistance, mechanical strength and dimensional stability of the film. The obtained film has high optical transparency, the average transmittance in the visible light region is more than 88%, and at the same time, the film has high heat resistance, the glass transition temperature is more than 350 DEG C, and excellent mechanical properties, and the dependence on fluorine-containing monomers is reduced, and the film has the characteristics of green environmental protection and low cost, and can meet the urgent needs of the fields of flexible display, optoelectronic devices and the like for high-performance transparent heat-resistant substrates.

The application relates to the technical field of organic photocatalysis, and specifically puts forward a sulfur-containing photoinitiator composition and a free radical polymerization system. The sulfur-containing photoinitiator composition specifically comprises an organic photocatalyst and a sulfur-containing initiator. When used for photoinitiated free radical polymerization, the organic photocatalyst and the sulfur-containing initiator respectively act as an acceptor and a donor, a photoinduced reaction occurs under light to form a charge transfer complex, and the charge transfer complex is dissociated into free radicals to initiate free radical polymerization. The application utilizes a novel sulfur-containing photoinitiator composition, and successfully applies the sulfur-containing photoinitiator composition to the polymerization field. Since the sulfur-containing photoinitiator composition exhibits excellent insensitivity to water and oxygen, the sulfur-containing photoinitiator composition can be rapidly initiated under light in an air environment without a metal catalyst and a complicated oxygen removal operation, so that the sulfur-containing photoinitiator composition can provide a brand-new green synthesis path for the development of high-performance functional polymers, and the technical problems of existing polymerization technologies, such as environmental sensitivity, complicated steps or dependence on metal catalysts, are solved.

The application belongs to the field of strain sensors, and particularly relates to a flexible multifunctional sensing film structure and a preparation method thereof. The application takes two-dimensional material graphene as a core, designs and prepares an ultrathin flexible extensible structure and a sensing unit for sensing strain, near-infrared light and temperature, and integrates and designs different parameter sensing function units. A first layer is a rigid base layer with a polished surface; a second layer is a sacrifice layer; a third layer is a flexible base layer; a fourth layer is a rigid base material layer; a fifth layer is a two-dimensional material; a sixth layer is an electrode; and a seventh layer is a surface functionalization modification layer of a near-infrared light sensing unit. The application enhances the near-infrared light response sensitivity of graphene by surface functionalization modification of charge transfer complexes of graphene, and the overall design has flexibility, high sensitivity, independent sensing of multiple parameters and good environmental adaptability.

The application discloses a preparation method of SMA copolymer with high maleic anhydride content and belongs to the technical field of polymer synthesis. The preparation method comprises the following steps: taking 4,4'-azobis(4-cyanopentanoic acid) as raw material, and synthesizing a functional initiator through two-step reactions of acyl chlorination and amidation; and then copolymerizing styrene, maleic anhydride, the functional initiator and tri(pentafluorophenyl)borane to obtain a copolymer with a mass fraction of maleic anhydride of 35%-45%. The application aims at the technical limitation that the maleic anhydride content is generally difficult to exceed 30% due to the charge transfer complex mechanism in the prior art, and proposes that the functional initiator and tri(pentafluorophenyl)borane form a synergistic system through reversible N-B coordination, and the selective activation and local enrichment effect are utilized to realize efficient insertion of maleic anhydride, thereby providing a new path for preparing SMA copolymer with high maleic anhydride content.

This invention relates to a NIR-II charge transfer complex (CTCs) and its preparation and application. Using TFTQ as the core acceptor (A) moiety, this invention co-assembles a series of CTCs with various donor moiety moieties. Through systematic screening, DBTTF (D2) was identified as the optimal electron donor. By analyzing the structure-activity relationship between stoichiometry and material properties, this invention discovers that 2A-D2, with a acceptor-to-donor molar ratio of 2:1, possesses both a high molar extinction coefficient and loose molecular packing. This structure not only promotes nonradiative transitions, achieving a photothermal conversion efficiency of 40.3%, but also alleviates aggregation-induced quenching effects through loose molecular arrangement, increasing reactive oxygen species (ROS) production and resolving the fundamental contradiction between NIR-II photothermal conversion and ROS generation. 2A-D2-mediated photodynamic-photothermal combined therapy exhibits potent anti-tumor effects. Irradiation with a 1064 nm laser induces mitochondrial dysfunction and DNA damage in tumor cells, achieving a tumor inhibition rate of up to 94.5%, and significantly inhibiting lung metastasis, providing a new approach for precise ablation therapy of deep tumors.

This invention relates to a charge transfer complex hydrogel, its preparation method, and its application. The charge transfer complex hydrogel comprises: a solution of charge transfer complex nanoparticles and a bromothymol blue solution, wherein the charge transfer complex nanoparticles are 3-AP-TQ NPs, Per-TQ NPs, 3-BrP-TQ NPs, or 3-PCA-TQ NPs. The charge transfer complex hydrogel of this invention possesses the following functions: highly efficient photothermal antibacterial properties: utilizing the photothermal effect of NIR-II CTCs, localized high temperatures are generated under laser irradiation to kill drug-resistant bacteria; real-time infection monitoring: the degree of infection is visually indicated by the sensitive color change of BTB on wound pH; ideal dressing properties: relying on a carrageenan base, it provides a suitable moist environment, permeability, and mechanical support.

The application discloses an organic cathode material with super-high electron conductivity, which is Li4C8H2O6-TCNQ, and the Li4C8H2O6-TCNQ is a charge transfer complex formed by raw material Li4C8H2O6 and TCNQ. The organic cathode material has super-high electron conductivity, and when the organic cathode material is used in a full solid-state battery, the full solid-state battery has better electrical performance.