http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110790860-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-5083 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-508 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-54 |
| filingDate | 2018-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110790860-B |
| titleOfInvention | Acrylamide copolymer and preparation method and application thereof |
| abstract | The invention relates to the technical field of oilfield flooding, and discloses an acrylamide copolymer and a preparation method and application thereof, wherein the preparation method comprises the following steps: under the condition of solution polymerization reaction, in the presence of an initiator and a surfactant, carrying out polymerization reaction on a monomer mixture consisting of acrylamide, a comonomer with a structure shown in a formula (1) and an active monomer with a structure shown in a formula (2) in water; the initiator comprises an initiator A and an initiator B, the structure of which is shown as formula (3), wherein the initiator B is amidinothiourea; wherein R is 1 ‑R 3 And R 5 Each is selected from hydrogen or C1-C4 alkyl, R 4 Is C1-C4 alkylene, M is hydrogen, sodium or potassium; r 6 ‑R 9 Each is C1-C4 alkyl, n is an integer of 1-10, and m is an integer of 2-6. The prepared acrylamide copolymer has ultrahigh molecular weight, high viscosity, excellent solubility, high temperature resistance, high salt resistance and high surface/interface activity. |
| priorityDate | 2018-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.