http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114591497-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_96b9f465dbb4c797acef6db9e837aa16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_645595256a6daaf6f9ca0cd63aec1a21 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2022-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d4489839198e6756d7d6f67bbebcfb4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bac8d7cfbee140801a2785c49ce2fd80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64ade6c333efc0655f8b9200bd7c30e3 |
| publicationDate | 2022-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114591497-A |
| titleOfInvention | A kind of method that utilizes macroporous material to catalyze L-lactide to prepare L-polylactic acid |
| abstract | The invention discloses a method for preparing L-polylactic acid by utilizing macroporous material to catalyze L-lactide. The method comprises: (1) mixing the monomer L-lactide and the catalyst three-dimensional ordered macroporous ZIF-8, heating and stirring under vacuum conditions to carry out the reaction; (2) cooling the reactor in ice water to complete the reaction, and using The product was dissolved in dichloromethane, the catalyst was separated by centrifugation, and the product L-polylactic acid was obtained by vacuum drying. The method for preparing L-polylactic acid by heterogeneous catalysis of L-lactide by direct ring-opening polymerization disclosed in the invention utilizes that the catalyst has Lewis acid sites and high specific surface area, the synthesis route is simple, no solvent and co-catalyst are required, and the The energy consumption and investment of the separation section are effectively reduced, the conversion rate of L-lactide is high, and the cyclic polylactic acid with high molecular weight and controllable, and the polymer dispersibility index PDI value is particularly small, has a good application prospect. |
| priorityDate | 2022-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.