http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109265675-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be85a2cd293b3fd52c73358c9c1cd742 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-3318 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-3315 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-331 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-15 |
| filingDate | 2018-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a12f4d8c738aa513d42accd83ea0c42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1e3ff14e2032404e64481a690da6217 |
| publicationDate | 2019-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109265675-A |
| titleOfInvention | Compound of aryl group-terminated polyethylene glycol carboxy aryl ester and preparation method thereof |
| abstract | The invention discloses a compound of a aryl group-terminated polyethylene glycol carboxyaryl ester, and discloses a preparation method thereof. Firstly, polyethylene glycol and maleic anhydride are used as main raw materials, and the advantages of polyethylene glycol are utilized. The carboxyl group-terminated polyethylene glycol was prepared by ring-opening reaction, and the characteristics and purity of the polymer were qualitatively and quantitatively analyzed by 1 H-NMR. Then, the esterification reaction with aromatic alcohol was carried out under the catalyst condition to obtain the target product. An aryl-terminated polyethylene glycol carboxyaryl ester at both ends. The aryl-terminated polyethylene glycol carboxyl aryl ester provided at the two ends of the target product provided by the invention has wider application in the pharmaceutical, food and material industries, and the preparation method has the advantages of high selectivity and simple operation. The raw materials are easy to obtain and the conditions are mild. |
| priorityDate | 2018-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.