摘要:
A conductive circuit board is prepared by forming a film of organopolysilane having a H-Si bond on a substrate, selectively exposing the organopolysilane film to light to form a photo-crosslinked layer in exposed areas, dissolving away unexposed areas, and contacting a silver salt with the photo-crosslinked layer and reducing the silver salt to form a silver conductive layer thereon. A conductive circuit board comprising a circuit-patterned film of photo-crosslinked polymer on a substrate and a silver conductive layer on the film has high and stable electric property.
摘要:
A conductive powder having an organic silicon polymer layer on the surface of each particle and a metal layer enclosing the silicon polymer layer possesses a stronger bond between the particle base and the metal even at elevated temperature and exhibits a high and stable conductivity and heat resistance.
摘要:
A conductive powder having an organic silicon polymer layer on the surface of each particle and a metal layer enclosing the silicon polymer layer possesses a stronger bond between the particle base and the metal even at elevated temperature and exhibits a high and stable conductivity and heat resistance.
摘要:
A conductive polymer comprises a silicon-containing polymer having, in the main chain thereof, Si--Si bonds or both Si--Si bonds and C--C multiple bonds, and ferric chloride doped in said polymer through vapor phase doping. A method for preparing such a conductive polymer is also described.
摘要:
A metal pattern is prepared by applying a polysilane composition comprising a polysilane, a carbon functional silane, and a solvent onto a substrate to form a patterned coating of the polysilane composition, attaching catalytic metal nuclei to the patterned coating, and immersing the substrate in an electroless plating bath for thereby chemically depositing a metal film on the patterned coating.
摘要:
A silicon containing polymer such as a polysilane, poly(disilanylenephenylene), and poly(disilanyleneethynylene) is admixed with an amine compound and then doped with an oxidizing dopant, typically iodine and ferric chloride, to produce a highly conductive polymer composition having improved shapability. The composition is easily applicable, as by spin coating, to form a highly conductive film or coating.
摘要:
Polycyclic aromatic group-pendant polysilanes of the following general formula are described.[(R.sup.1 R.sup.2 Si).sub.k (R.sup.3 R.sup.4 Si).sub.m ].sub.nwherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are, respectively, a hydrogen atom or a monovalent hydrocarbon group provided that at least one of R.sup.3 and R.sup.4 is a monovalent hydrocarbon group having a polycyclic aromatic group or a biphenyl group. When the polysilane is doped with an oxidative dopant, the polymer is rendered electrically conductive and has thus wide utility in various fields of photoconductive and electrically conductive materials without involving degradation of the polysilane.
摘要:
A polysilane pattern-bearing substrate is prepared by the steps of (1) forming a polysilane film on a substrate, (2) subjecting the polysilane film to selective light exposure in the presence of a first solvent which does not dissolve polysilane, but dissolves siloxane, for converting the polysilane in selected areas to siloxane for thereby forming a pattern, (3) removing only the siloxane from the substrate of step (2) using a second solvent which does not dissolve polysilane, but dissolves siloxane, and (4) completely removing the second solvent. The polysilane pattern has a high degree of definition.
摘要:
A polysilane having an aromatic amino group is doped with an oxidative dopant, typically iodine and ferric chloride, to produce a highly conductive polysilane composition having improved shapability. The composition is easily applicable to form a highly conductive film or coating.
摘要:
Polysilanes are synthesized by reacting dihalosilanes in the presence of alkali metal particles while using copper powder, cuprous oxide, cupric oxide, or an organic copper compound as a catalyst. There are obtained high molecular weight polysilanes in high yields.