Healable and recyclable polyimide polymer resin, healing method and recycling method thereof
AssigneeNational Tsing Hua University
InventorsHo-Hsiu Chou, Kuei-Yi Chuang
Life of this patent
Estimating the term…
Abstract
A healable and recyclable polyimide polymer resin includes a chemical structural unit represented by formula (I), which is defined in the description. The chemical structural unit represented by the formula (I) bonds to at least one condensation-polymerizable monomer, so as to form the healable and recyclable polyimide polymer resin, and the condensation-polymerizable monomer is a diamine monomer or a dianhydride monomer.
Claims7
A healing method of a healable and recyclable polyimide polymer resin, wherein the healable and recyclable polyimide polymer resin is healed by a healing process under a healing temperature;
- wherein the healable and recyclable polyimide polymer resin comprises a chemical structural unit represented by formula (I):
- wherein in the formula (I), A is single bond, benzene, biphenyl, benzophenone or 3,3′-bis(trifluoromethyl)-4,4′-dimethylbiphenyl, each of R1 and R2 is methyl, ethyl or trifluoromethyl independently, X1 is diphenyl ether, biphenyl, benzophenone, 2,2-diphenyl propane, (-)-di-p-toluenesulfonyl, or 3,3′-bis(trifluoromethyl)-4,4′-dimethylbiphenyl, X2 is a group represented by formula (IA):
- wherein in the formula (IA), Q is benzene, hexafluoro-2,2-diphenylmethane, biphenyl, benzophenone, diphenyl ether or alicyclic structure, each of P1 and P2 is benzene, biphenyl, hexafluoro-2,2-diphenylmethane or alicyclic structure independently, and P1 and P2 are connected to or disconnected from each other;
- wherein the chemical structural unit represented by the formula (I) bonds to at least one condensation-polymerizable monomer, so as to form the healable and recyclable polyimide polymer resin, and the condensation-polymerizable monomer is a diamine monomer or a dianhydride monomer.
A recycling method of a healable and recyclable polyimide polymer resin, comprising:
- performing a dissolving process, wherein the healable and recyclable polyimide polymer resin is dissolved in a solution of diethylenetriamine, so as to obtain a recycled polyimide solution;
- and
- performing a film-forming process, wherein the recycled polyimide solution is coated and baked, so as to form a recycled polyimide film;
- wherein the healable and recyclable polyimide polymer resin comprises a chemical structural unit represented by formula (I):
- wherein in the formula (I), A is single bond, benzene, biphenyl, benzophenone or 3,3′-bis(trifluoromethyl)-4,4′-dimethylbiphenyl, each of R1 and R2 is methyl, ethyl or trifluoromethyl independently, X1 is diphenyl ether, biphenyl, benzophenone, 2,2-diphenyl propane, (-)-di-p-toluenesulfonyl, or 3,3′-bis(trifluoromethyl)-4,4′-dimethylbiphenyl, X2 is a group represented by formula (IA):
- wherein in the formula (IA), Q is benzene, hexafluoro-2,2-diphenylmethane, biphenyl, benzophenone, diphenyl ether or alicyclic structure, each of P1 and P2 is benzene, biphenyl, hexafluoro-2,2-diphenylmethane or alicyclic structure independently, and P1 and P2 are connected to or disconnected from each other;
- wherein the chemical structural unit represented by the formula (I) bonds to at least one condensation-polymerizable monomer, so as to form the healable and recyclable polyimide polymer resin, and the condensation-polymerizable monomer is a diamine monomer or a dianhydride monomer.
Dependencies are inferred from the claim text.