http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111748085-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C249-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F13-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C251-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C249-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-42 |
| filingDate | 2020-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111748085-B |
| titleOfInvention | Biodegradable material multi-block polyester and preparation method thereof |
| abstract | The invention provides a biodegradable material multi-block polyester and a preparation method thereof, wherein the method comprises the following steps: under the action of a catalyst, lactide, phthalic anhydride and cyclohexene oxide are subjected to ring-opening copolymerization reaction in a solvent to obtain multi-block polyester; the catalyst is a Schiff base manganese compound with a structure shown in a formula I. The method provided by the invention adopts the Schiff base manganese compound with the structure of formula I to catalyze the ring-opening copolymerization of lactide, anhydride and cyclohexene oxide, the catalyst has NNOO tridentate coordination capacity, can form a metal active center binding site, is a four-coordination Schiff base manganese catalyst, has good activity for two different types of ring-opening polymerization, has high selectivity for monomers, and can realize adjustable multi-block polymerization reaction. According to the preparation method, 7 sections of polylactide-polyanhydride epoxy copolymer can be obtained through three times of anhydride addition, and the highest molecular weight can reach 47 kg/mol. |
| priorityDate | 2020-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.