http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021395456-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc4e13141d402ceb885f368dfa042348 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2203-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2333-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1039 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-29 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 2019-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36e60a64dc021b05853e55176a26d6ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a4ef10a491ad0ab144b446735f9b6bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32650a5424f318b18c0b4c4bd2a86a63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ee04adbcc689b66d49a7525793f1593 |
| publicationDate | 2021-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2021395456-A1 |
| titleOfInvention | Fluoride ion colorimetric sensing pi film, preparation method therefor and application thereof |
| abstract | A fluoride ion (F−) colorimetric sensing polyimide (PI) film, a preparation method therefor and application thereof; the preparation method for a F− colorimetric sensing polyimide film comprises: mixing an aromatic diamine monomer and an aromatic dianhydride monomer in a strong polar aprotic organic solvent, adding a catalyst, vacuumizing at room temperature-introducing argon repeatedly for multiple times, and then reacting same under the protection of argon to obtain a polyimide solution; then preparing a PI fiber; dissolving the PI fiber in the strong polar aprotic organic solvent, thoroughly stirring to dissolve same and then applying same evenly on a clean glass plate, removing the solvent, cooling, then soaking same in hot water for film stripping so as to obtain the F− colorimetric sensing PI film. The PI film containing fluorene with hydroxy group may be directly cut into sheets for use such that sensor devices can be easily fabricated, and can be used for the detection of F−s, with a sensitivity reaching a detection limit of 10−4 mol/L, and a high selectivity. |
| priorityDate | 2019-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 138.