http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115219541-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f797ff0f25bf74afaea5c17af21db544 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7b29aeae009a81974f10c95de4ae0b2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4310e63fb98e446d9b8227f93e5e789d http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d91716e852b955fe11f40054bbac0145 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N24-087 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N24-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-135 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N24-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-13 |
| filingDate | 2022-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c7e57dfc9808e74be79c50c32c15410 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bff3cdb22a8692e8cee1133015d8df0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93552d53fb70214e9eeea68823a23595 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69001dc1c448b30e2d250f9f60d3e205 |
| publicationDate | 2022-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-115219541-A |
| titleOfInvention | A kind of structural analysis method of ethoxylated trimethylolpropane |
| abstract | The present invention provides a method for analyzing the structure of ethoxylated trimethylolpropane, comprising: reacting an ethoxylated trimethylolpropane sample to be analyzed with a derivatization reagent to obtain a derivatized liquid sample; Put the liquid sample into the nuclear magnetic tube, add the deuterated reagent; send the sample dissolved in the deuterated reagent into the nuclear magnetic resonance spectrometer for hydrogen spectrum test, and obtain the hydrogen nuclear magnetic resonance spectrum data; put the obtained sample hydrogen spectrum data After processing and analysis, the baseline was corrected, the peak was determined and the peak was integrated to calculate the molecular weight of the ethoxylated trimethylolpropane and the graft ratio of the terminal hydroxyl group. In the invention, the ethoxylated trimethylolpropane sample is subjected to derivatization pretreatment by acetic anhydride, and combined with the analysis method of hydrogen nuclear magnetic resonance, so as to avoid the terminal hydroxyl group of the ethoxylated trimethylolpropane on the EO chain. Integrated interference from overlapping methyl peaks allows a quick and easy determination of the average molecular weight of ethoxylated trimethylolpropane. |
| priorityDate | 2022-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.