http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109096481-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-183 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-16 |
| filingDate | 2018-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109096481-B |
| titleOfInvention | Catalytic system for preparing polyether-containing polymer and preparation method of various polyether-containing polymers |
| abstract | The invention discloses a catalytic system for preparing polyether-containing polymers and a preparation method of various polyether-containing polymers, wherein the catalytic system comprises an initiator, an organic Lewis base and a Lewis acid; the initiator is selected from a small molecular compound or a high molecular compound containing-OH and/or-SH end groups, wherein the number of the-OH or-SH end groups is 1-8; the organic Lewis base is selected from nitrogen-containing compounds and is at least one of phosphazene, guanamine, amidine, imidazole and pyridine, and the pKa value in acetonitrile is 9.6-33.5; the lewis acid is selected from trialkylboron compounds. The catalytic system disclosed by the invention has extremely high catalytic efficiency, is easy to obtain commercially, and simultaneously avoids the problem of metal residue caused by the traditional metal catalytic system. Under the condition of the existence of the catalytic system, polyether-containing polymers and block copolymers with definite chain structures, controllable molecular weights and narrow distribution can be synthesized through anion ring opening, and side products of terminal double bonds are not contained. |
| priorityDate | 2018-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.