http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109053474-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1082 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C217-88 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C213-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C217-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-60 |
| filingDate | 2018-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109053474-B |
| titleOfInvention | Flexible diamine monomer, preparation method thereof and application thereof in preparation of polyimide |
| abstract | The invention provides a flexible diamine monomer with a trifluoromethyl substituted dicyclohexylidene structure, and a preparation method and application thereof. The flexible diamine monomer provided by the invention comprises trifluoromethyl, a flexible group and an alicyclic structure, wherein the flexible group is an ether bond or an ester group, and the alicyclic structure is dicyclohexylidene. When the flexible diamine monomer provided by the invention reacts with dianhydride to generate polyimide, the trifluoromethyl and flexible groups in the flexible diamine monomer increase the free volume and flexibility of a polyimide molecular chain, so that a solvent is easy to permeate, and the solubility of the polyimide is improved; the alicyclic structure in the flexible diamine monomer can further improve the solubility and the transparency of polyimide; in addition, an aromatic ring structure exists in the main chain of the diamine monomer, so that the polyimide prepared by the diamine monomer has stronger intermolecular acting force, and the polyimide prepared by the diamine monomer has stronger mechanical property. |
| priorityDate | 2018-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 81.