Pattern forming method, arranged fine particle pattern forming method, conductive pattern forming method, and conductive pattern material
View Patent ↗The present invention provides a pattern forming method comprising bonding a compound to a substrate, the compound having both a polymerization initiating moiety capable of undergoing photocleavage to initiate radical polymerization and a substrate bonding moiety, contacting a radical-polymerizable unsaturated compound with the substrate, and exposing light thereto patternwise, so as to form a region where a graft polymer is generated and a region where a graft polymer is not generated. A conductive pattern forming method applying the pattern forming method, and a conductive pattern material obtained by the conductive film forming method.
1. A pattern forming method comprising:
(a) bonding a compound to a substrate, the compound having both a polymerization initiating moiety capable of undergoing photocleavage to initiate radical polymerization and a substrate bonding moiety,
(b) contacting a radical-polymerizable unsaturated hydrophilic polymer with the substrate wherein the radical-polymerizable unsaturated hydrophilic polymer is formed by reacting a functional group of a hydrophilic polymer with a monomer having an ethylene addition-polymerizable unsaturated group; and
(c) applying light to the substrate of step (b) patternwise to form a region where a graft polymer is generated and a region where a graft polymer is not generated.
2. The pattern forming method according to claim 1 , wherein the polymerization initiating moiety contains a bond selected from the group consisting of a C—C bond, a C—N bond, a C—O bond, a C—Cl bond, a N—O bond, and a S—N bond.
3. The pattern forming method according to claim 1 , wherein the graft polymer has a hydrophilic group on its side chain.
4. The pattern forming method according to claim 1 , wherein the hydrophilic polymer includes a carboxyl group.
5. The pattern forming method according to claim 1 , wherein the monomer having an ethylene addition-polymerizable unsaturated group is selected from the group consisting of (meth)acrylic acid, glycidyl (meth)acrylate, allyl glycidyl ether, 2-isocyanato ethyl (meth)acrylate and 2-methacryloyloxyethyl isocyanate.