摘要:
A process for producing a high-molecular polyimide resin in high yield with ease, which comprises heating and drying a mixture of monomers for the polyimide at a reduced pressure.
摘要:
The present invention provides a method for easily producing a high-molecular weight polyimide resin at high yield by drying and heating a mixture mixed by material monomers of polyimide.
摘要:
An object of the present invention relates to a soluble polyimide having an excellent heat resistance and low water absorption, a composition containing the soluble polyimide, which is cured at a relatively low temperature and has excellent heat resistance and adhesive properties, a bonding sheet using the composition, and adhesive laminated film for covering an accelerator beam tube and for covering a conductor wire for an accelerator quench heater, which have excellent workability, flexibility, and radiation resistance at a low temperature and especially have excellent adhesive properties. The polyimide is obtained by reacting an acid dianhydride represented by the general formula (1) (wherein X represents a bivalent organic group having -(CH 2 ) k - or an aromatic group and k is an integer of 1 to 10) with a compound represented by the general formula (2) (wherein A represents -NH 2 - or -NCO, Y independently represents -C(=O)-, -SO 2 -, -O-, -S-, -(CH 2 ) m -, -NHCO-, -C(CH 3 ) 2 -, -C(CF 3 ) 2 -, -C(=O)O- or a single bond, and m and n each are an integer of 0 to 10). The polyimide has a solubility of 10% or higher at 20°C even in a low-boiling organic solvent, and has a glass transition temperature of 100°C to 250°C and water absorption of 1.5% or lower. Specially, by mixing with epoxy resin, the soluble polyimide is used as a composition, solution of polyimide adhesive, laminator, bonding sheet, and adhesive laminated films suitable for covering an accelerator beam tube or for covering a conductor wire for an accelerator quench heater.
摘要:
An electrode composite body including a conductive polymer film in which the doping and dedoping capacities of the conductive polymer are improved, an electrolyte, and a redox capacitor including those are provided. The object is achieved by the followings: (1) an electrode composite body including a conductive polymer and an electrode for redox capacitors; (2) an electrode composite including a conductive polymer film and an electrode body for redox capacitors; (3) an electrolyte for redox capacitors that contains an ionic liquid as an essential component; (4) a redox capacitor composed of an electrolyte containing an ionic liquid as an essential component and an electrode composite body for redox capacitors; and (5) a composite body in which the anionic component contained in the ionic liquid and is the same component as a part of the dopant of the conductive polymer.
摘要:
The present invention provides means for forming an oxide film on a metal surface, means for repairing a defect of an oxide film, a high-performance electrolytic capacitor using the means, and an electrolyte of the capacitor. Namely, the prevent invention provides a method for easily forming an oxide film on the surface of a metal or an alloy thereof by anodization using a solution containing an ionic liquid. In an application of this method, an electrolytic capacitor having means for repairing a defect of an oxide film can be formed by a method using, as an electrolyte, an ionic liquid, a solution containing an ionic liquid and a salt, or a solution containing an ionic liquid and a conductive polymer or a TCNQ salt, and a valve metal or an alloy thereof as a metal.