Sulfur-containing oligomer and dendrimer of acrylate and preparation methods thereof
AssigneeEternal Materials Co., Ltd.
InventorsXiu-Xia Ma, Wen-Fang Shi, Jing Jiang, Sheng-Yao Hsueh, Chih-Kang Chou
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Abstract
Sulfur-containing oligomer and dendrimer of acrylate and preparation methods thereof are provided. The sulfur-containing oligomer and dendrimer of acrylate are prepared by reacting monomers A and B in Michael addition reaction.
Claims20
A sulfur-containing acrylate oligomer having a chemical structure of B1-A2-B1, wherein A2 and B1 respectively have chemical structures below:
- and wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group.
A modified sulfur-containing acrylate oligomer having a chemical structure of B1′-A2-B1′, B1′-A2-B1″ or B1″-A2-B1″, wherein A2, B1′ and B1″ respectively have the chemical structures below:
- and wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, R2 and R3 are respectively an aromatic or a cycloalkyl group, and R7 is an aromatic group or a heterocyclic group having at least a double bond.
A method of preparing a sulfur-containing acrylate oligomer, the method comprising:
- dropwise adding a monomer A into an aprotic solvent containing a monomer B to perform Michael addition to obtain a sulfur-containing acrylate oligomer, wherein the molar ratio of A to B is 1:2, and A and B respectively have chemical structures below:
- wherein the sulfur-containing acrylate oligomer having a chemical structure of B1-A2-B1, wherein A2 and B1 respectively have chemical structures below, and R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group.
A method of preparing a modified sulfur-containing acrylate oligomer, the method comprising:
- dropwise adding a monomer A into an aprotic solvent containing a monomer B to perform Michael addition to obtain a sulfur-containing acrylate oligomer, wherein the molar ratio of A to B is 1:2, and A and B respectively have chemical structures below:
- wherein the sulfur-containing acrylate oligomer having a chemical structure of B1-A2-B1, wherein A2 and B1 respectively have chemical structures below, and R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group;
- and
- adding a thiol-containing modifier (R7SH) to perform Michael addition with the sulfur-containing acrylate oligomer to obtain a modified sulfur-containing acrylate oligomer having a chemical structure of B1′-A2-B1′, B1′-A2-B1′, or B1″-A2-B1″, wherein B1′ and B1″ respectively have the chemical structures below, and R7 is an aromatic group or a heterocyclic group having at least a double bond.
A sulfur-containing acrylate dendrimer having a chemical structure of
- wherein B1 and B2 are randomly distributed on terminals of the sulfur-containing acrylate dendrimer, and the chemical structures of A2, B1, B2 and B3 are shown below:
- and wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group.
A modified sulfur-containing acrylate dendrimer having a chemical structure of
- wherein A2, B1′, B1″, B2′ and B3 respectively have chemical structures below:
- and wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, R2 and R3 are respectively an aromatic or a cycloalkyl group, and R7 is an aromatic group or a heterocyclic group having at least a double bond.
A method of preparing a sulfur-containing acrylate dendrimer, the method comprising:
- reacting a monomer A and a monomer B in an aprotic solvent to obtain a sulfur-containing acrylate dendrimer having a chemical structure of
- wherein B1 and B2 are randomly distributed on terminals of the sulfur-containing acrylate dendrimer, wherein the molar ratio of monomer A to monomer B is 1:0.25-4, but not 1:2 when the monomer A is added to the aprotic solvent containing the monomer B, and the monomer A, monomer B, A2, B1, B2 and B3 respectively have chemical structures below:
- wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group.
A method of preparing a modified sulfur-containing acrylate dendrimer, the method comprising:
- reacting a monomer A and a monomer B in an aprotic solvent to obtain a sulfur-containing acrylate dendrimer having a chemical structure of
- wherein B1 and B2 are randomly distributed on terminals of the sulfur-containing acrylate dendrimer, wherein the molar ratio of monomer A to monomer B is 1:0.25-4, but not 1:2 when the monomer A is added to the aprotic solvent containing the monomer B, and the monomer A, monomer B, A2, B1, B2 and B3 respectively have chemical structures below:
- wherein R1, R4, R5 and R6 are respectively an alkyl group with 1-6 carbons, and R2 and R3 are respectively an aromatic or a cycloalkyl group;
- and
- adding a thiol-containing modifier (R7SH) to perform Michael addition with the sulfur-containing acrylate dendrimer to obtain a modified sulfur-containing acrylate dendrimer having a chemical structure of
- wherein B1′, B1″, and B2′ respectively have chemical structures below:
- and wherein R7 is an aromatic group or a heterocyclic group having at least a double bond.
Dependencies are inferred from the claim text.