http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019057031-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac31afbea1cbbb03498644721ffb4a62 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-87 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2018-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ede38521a4f2b5499cefa081dcadfd0e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7ba2df66b45fe39d03d5ac12def15a4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_694ed00c32a82fa0079e3a6725059f62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c6d04c50f6d82b8e830b5a592f0a232 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bea08e250d26e1146d8e064cc020944 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45ece230aa19080c97fccfd0b453648b |
| publicationDate | 2019-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2019057031-A1 |
| titleOfInvention | Method for synthesizing ultra-high isotactic poly-L-/D-lactic acid by macroinitiator and condensation-open-loop-solid phase polymerization |
| abstract | A macroinitiator and condensation-open-loop-solid phase polymerization method for synthesizing ultra-high isotactic poly-L-/D-lactic acid, which is synthesized by high optical pure L-/D-lactic acid polycondensation reaction The molecular initiator initiates a high optical purity L-/D-lactide bulk fusion ring-opening polymerization, and then a novel process for obtaining a high molecular weight, chiral pure poly-L-/D-lactic acid by solid phase polymerization. The novel process can synthesize a weight average molecular weight Mw of 1.8×105-6.0×105, a molecular weight distribution of PDI of 1.5-1.7, an isotacticity of Iso. of 99.0-99.5%, a melting point of Tm of 185.0-188.0° C., and a crystallinity Xc. It is a high molecular weight, high optical purity poly-L-/D-lactic acid of 85.0-90.0%. |
| priorityDate | 2017-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.