Polymerizable composition and manufacturing method for element-mounted substrate
A polymerizable composition and a manufacturing method for an element-mounted substrate using the polymerizable composition. The polymerizable composition includes a water-soluble polymer, a nitrogen-containing monofunctional (meth)acrylic monomer, and a polymerization initiator. The composition is used to restrict a region where a sealing agent can flow in a sealing step in which at least a portion of an element provided on a substrate is sealed by using the sealing agent, and to form a sealing agent restricting material that is removed from the substrate after the sealing step.
1 . A polymerizable composition comprising a water-soluble polymer, wherein the water-soluble polymer is a cellulosic polymer, a nitrogen-containing monofunctional (meth)acrylic monomer, and a polymerization initiator, wherein a content of the nitrogen-containing monofunctional (meth)acrylate monomer in the polymerizable composition is 50 mass % or more and 95 mass % or less with respect to the total mass of the polymerizable composition.
2 . The polymerizable composition according to claim 1 , wherein the nitrogen-containing monofunctional (meth)acrylic monomer is a compound represented by the following formula (a1):
wherein R 1 is a hydrogen atom or a methyl group, X is a methylene group, —O—, —S—, or —NR 2 —, R 2 is a hydrogen atom or an alkyl group having 1 or more and 4 or less carbon atoms, p and q are each independently an integer of 0 or more and 6 or less, and p+q is 1 or more and 6 or less.
3 . The polymerizable composition according to claim 1 , wherein the nitrogen-containing monofunctional (meth)acrylic monomer is a compound represented by the following formula (a2):
wherein R 3 is a hydrogen atom or a methyl group, R 4 is an alkylene group having 1 or more and 5 or less carbon atoms, and R 5 and R 6 are each independently a hydrogen atom or an alkyl group having 1 or more and 5 or less carbon atoms, and
R 5 and R 6 may be bonded to each other to form a 11-membered ring at the maximum.
4 . The polymerizable composition according to claim 1 , wherein a calculated value of a glass transition temperature of the nitrogen-containing monofunctional (meth)acrylic monomer as a homopolymer is 100° C. or higher.
5 . The polymerizable composition according to claim 1 , wherein the polymerization initiator is a photopolymerization initiator.
6 . The polymerizable composition according to claim 5 , wherein the photopolymerization initiator is an alkylphenone-based photopolymerization initiator.
7 . The polymerizable composition according to claim 1 , wherein a viscosity measured at 25° C. by an E-type viscometer is 1,000 cP or more and 300,000 cP or less.