http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110483753-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 |
| filingDate | 2019-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110483753-B |
| titleOfInvention | L ewis acid-base system controllable catalysis O-carboxylic anhydride monomer ring-opening polymerization method based on metal salt and organic base |
| abstract | A method for controlling and catalyzing ring-opening polymerization of an O-carboxylic anhydride monomer by using an L ewis acid-base system based on metal salt and organic base, belongs to the technical field of polyester synthesis, and is characterized in that under the protection of nitrogen at normal temperature and in an anhydrous solvent, a L ewis acid-base system consisting of alcohol or amine as an initiator and metal salt and organic base is used for catalyzing the controllable ring-opening polymerization of an OCA monomer, and the molecular weight of the obtained polymer can reach 20.8KDa and the molecular weight distribution And the tacticity P of the polymer m The metal salt and the organic base can be purchased commercially, the L ewis acid-base catalytic system can be used only by simply mixing the zinc salt and the organic base, and the operation is convenient and efficient. |
| priorityDate | 2019-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.