http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2017009011-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/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2016-09-19-04:00^^<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_694ed00c32a82fa0079e3a6725059f62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bea08e250d26e1146d8e064cc020944 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93d416da88c3dba467bbf34f98c8e231 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7ba2df66b45fe39d03d5ac12def15a4 |
| publicationDate | 2017-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2017009011-A1 |
| titleOfInvention | Method for synthesizing polylactide via living ring-opening polymerization |
| abstract | A method for synthesizing polylactide (PLA). The method employs RCOOCG, a nontoxic carboxylate of cyclic guanidine (CG), as a catalyst and non-toxic organic alcohol R′OH as an initiator to catalyze/initiate a living ring-opening polymerization of lactide (LA). The method includes: 1) adding monomer LA, the catalyst RCOOCG, and the initiator R′OH to a reaction still, where an initial molar ratio of the monomer to the catalyst is [LA] 0 /[RCOOCG] 0 =1000-1500:1, an initial molar amount [R′OH] 0 of the initiator R′OH is determined by a number average molecular weight (M n ) of a target product PLA; 2) removing air in the reaction still, sealing the reaction still after a pressure in the reaction still is constant at between 1.0 and 0.1 torr; stirring and heating the reaction still in 30 to 40 minutes to a temperature between 95 and 96° C.; and allowing reactants in the reaction still to polymerization. |
| priorityDate | 2015-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.