专利号:US-6737502-B2 优先权日:2002-06-06 标题:Method of synthesizing polyimides 发明人:JONG SHEAN-JENG 权利人:CHUNG SHAN INST OF SCIENCE 摘要:A solvent-free, catalyst-free and contamination-free method of synthesis of polyimides is disclosed. The method includes polymerizing a diamine with 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) at a pressure of 0.1-760 mm Hg, preferably a reduced pressure at about 36 mm Hg, and a temperature of 90-400° C., preferably 10-240° C.
专利号:US-5087691-A 优先权日:1989-09-01 标题 :Poly-phenylated diamines and their use as polycondensation monomers in the synthesis of polyamide, poly(amide-imide), and polyimide polymers 发明人:HARRIS FRANK W 权利人:UNIV AKRON 摘要:New polyphenylated polynuclear aromatic diamines, such as 1,3-bis[4-aminophenyl]-2,3,5-triphenylbenzene, a process for their manufacture and their use as polycondensation components for the manufacture of polyamide, polyamide-imide and polyimide polymers are described. The polymers obtained with the aromatic diamines according to the invention are readily soluble, rigid-rod polymers and are distinguished by outstanding modulus, tensile compression strength, energy absorption, coefficient of expansion and electrical properties.
专利号:US-2024010794-A1 优先权日:2020-09-29 标题:Synthesis of self-healing benzoxazine polymers through melt polymerization
专利号:US-7511113-B2 优先权日:2002-04-26 标题:Oligomeric hydroxy arylether phthalonitiles and synthesis thereof 发明人:KELLER TEDDY M; DOMINGUEZ DAWN D 权利人:US NAVY 摘要:An aromatic ether oligomer or polyaromatic ether comprising the formula:n n O—Ar n ;n nwherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula:n n nformed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.
专利号:US-2025070248-A1 优先权日:2023-08-25 标 题:Electrolyte additive, methods of synthesis and applications thereof 发明人:HWANG BING-JOE; TEKALIGNE TESHAGER MEKONNEN; YANG SHENG-CHIANG; SU WEI-NIEN; LIU HSIN-YUEH 权利人:UNIV NAT TAIWAN SCIENCE & TECHNOLOGY 摘要:The present invention provides an electrolyte additive with multiple functions when introduced into an electrolyte. Specifically, under high or overcharged voltage conditions, a high redox potential enables stable shuttling between the electrodes of an electrochemical device, facilitating oxidation reactions at the positive electrode and reducing exothermic reactions occurring at the electrodes. The oxidized electrolyte additive can then shuttle to the negative electrode, where it converts inactive metal into metal ion while self-reducing to its original state. It then diffuses back to the positive electrode for further oxidation, creating a cyclic reaction that effectively rejuvenates inactive metal and significantly prolongs the lifespan of the electrochemical device. Simultaneously, this electrolyte additive can generate a beneficial solid electrolyte interfacial functional group. This process results in the formation of a dense and beneficial solid electrolyte interface layer on the surface of the negative electrode, thereby enhancing the battery's overall performance.
专利号:JP-7631515-B2 优先权日:2020-09-29 标题 :Synthesis of self-healing benzoxazine polymers by melt polymerization
参考文献:10.1007/s13233-023-00130-z 摘要:Kim H, Kim Y, Lee J, Lee H, Jeon Y, Park S, Kim Y, Seong H, Kwak G. Highly tough, colorless, transparent polyamide-imide films from one reaction vessel without purification. Macromol. Res. 2023 Feb 21;31(3):213–22. doi: 10.1007/s13233-023-00130-z. 参考文献:10.1007/s10965-023-03677-8 摘要:Tan J, Chen Y, Huang J, Jiang L, Fei L, Sun W, Wu D, Zhang H, Liu Y. Influence of diamine moieties on the gas permeation performances of polyimide: perspectives from experiment and simulation. J Polym Res. 2023 Jul 22;30(8). doi: 10.1007/s10965-023-03677-8. 参考文献:10.1007/978-3-030-27322-4_22 摘要:Meador MAB, Vivod SL, Nguyen B, Guo H, Viggiano RP. Aerogels from Engineering Polymers: Polyimide and Polyamide Aerogels. 2023. In: Springer Handbooks. 参考文献:10.1007/978-3-030-27322-4_3 摘要:Griffin JS, Nelson RT, Gurikov P, Smirnova I, Steiner SA. Gel-Phase Processing and Solvent Exchange. 2023. In: Springer Handbooks. 参考文献:10.1007/s42823-023-00657-2 摘要:Kim ES, Park H, Kim S. Porous carbon anodes from fluorinated polyimide for lithium-ion batteries. Carbon Lett. 2023 Dec 15;34(3):1039–44. doi: 10.1007/s42823-023-00657-2.