http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109830725-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-1048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-1088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-1069 |
| filingDate | 2019-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109830725-B |
| titleOfInvention | Long side chain type polybenzimidazole anion membrane and preparation method thereof |
| abstract | The invention discloses a long side chain type polybenzimidazole anion membrane and a preparation method thereof, belonging to the technical field of ion exchange membranes. The method comprises the following steps: (1) dissolving polybenzimidazole in DMso; (2) and (3) carrying out functional grafting reaction, adding 2, 3-epoxypropyltrimethylammonium chloride into the dissolved polybenzimidazole solution under the heating condition, uniformly mixing, and drying to obtain the long-side-chain polybenzimidazole anion membrane. The long side chain structure formed by the ring opening of the 2, 3-epoxypropyltrimethylammonium chloride promotes the microphase separation structure to improve the ionic conductivity, and simultaneously, the donnan effect formed by polymer protonation and quaternary ammonium groups reduces the vanadium ion permeability. The long-side-chain polybenzimidazole anion membrane is simple in preparation process, low in price, high in ion selectivity and high in chemical stability, can be used in all-vanadium redox flow batteries, and has a good application prospect. |
| priorityDate | 2019-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.