| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e4589b30807b53be5b8d5c09bfad19dc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2353-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-46104
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2810-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2287
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-469
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2231
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J41-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J47-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-469
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J47-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J41-07 |
| filingDate |
2019-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c32a0a6c827a8ef274d6cad32e4085bb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17cba8778d1d43d4776559fb1502a253
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_accaa449a11a1be17daeff4fb311b4e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66814a87b2ae298d42216d565a643af3 |
| publicationDate |
2021-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021308663-A1 |
| titleOfInvention |
Alkaline anion exchange membranes derived from diphenylethylene and co-monomer feedstock |
| abstract |
The anion exchange membranes exhibit enhanced chemical stability and ion conductivity when compared with traditional styrene-based alkaline anion exchange membranes. A copolymer backbone is polymerized from a reaction medium that includes a diphenylalkylene and an alkadiene. The copolymer includes a plurality of pendant phenyl groups. The diphenyl groups on the polymer backbone are functionalized with one or more haloalkylated precursor substrates. The terminal halide from the precursor substrate can then be substituted with a desired ionic group. The diphenylethylene-based alkaline anion exchange membranes lack the α-hydrogens sharing tertiary carbons with phenyl groups from polystyrene or styrene-based precursor polymers, resulting in higher chemical stability. The ionic groups are also apart from each other by about 3 to 6 carbons in the polymer backbone, enhancing ion conductivity. These membrane are advantageous for use in fuel cells, electrolyzers employing hydrogen, ion separations, etc. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115124645-A |
| priorityDate |
2018-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |