http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106198594-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2013-003 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N24-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N13-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N24-08 |
| filingDate | 2016-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106198594-B |
| titleOfInvention | A kind of characterizing method of polymer molecular weight |
| abstract | The present invention provides a kind of characterizing methods of polymer molecular weight, by the way that the polymer solution of known molecular amount to be carried out to the two-dimensional molecular diffusion experiment (2D DOSY) in nuclear magnetic resonance technique, diffusion coefficient is obtained, and establishes the standard curve of polymer molecular weight and diffusion coefficient；Then the polymer solution to be measured of unknown molecular amount is subjected to two-dimensional molecular diffusion experiment, obtains diffusion coefficient, and according to the standard curve of the molecular weight of such polymer and diffusion coefficient, molecular weight and its distribution of polymer to be measured is calculated；Wherein, according to molecular size, the concentration of the polymer solution to be measured is controlled in 0.2~1.5mg/mL and experimental temperature at 90 DEG C to 150 DEG C；This method is easy to operate, and required sample size and quantity of solvent are all seldom, and characterization is at low cost, and test result is accurate, and while characterizing polymer molecular weight and molecular weight distribution, can distinguish two or more different types of polymer of close molecular weight in polymer. |
| priorityDate | 2016-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.