http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111892682-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-588 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F230-08 |
| filingDate | 2020-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111892682-B |
| titleOfInvention | Small-molecule salt-resistant polymer and preparation method thereof |
| abstract | The invention discloses a micromolecular salt-resistant polymer and a preparation method thereof, wherein the preparation method of the micromolecular salt-resistant polymer comprises the following steps: five-membered copolymerization is carried out on four functional monomers of sodium acrylate, acrylonitrile, AMPS and vinyl cyclotetrasiloxane and acrylamide, and an azo compound initiation system is adopted for reaction, so as to prepare the micromolecule salt-resistant polymer. According to the micromolecule salt-resistant polymer, acrylonitrile is introduced to improve the thermal stability of polyacrylamide, AMPS and sodium acrylate are introduced to improve the viscosity and water solubility, a silicon-oxygen cyclic monomer is introduced, the salt resistance of the polymer can be improved by utilizing the strong steric hindrance effect, the molecular weight can be reduced, a multi-branched structure is formed after the four functional groups are introduced into a main chain of the polymer, the length of the molecular chain is reduced, the molecular weight is reduced, the recovery efficiency is improved, and the oil displacement efficiency can reach more than 25%. |
| priorityDate | 2020-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.