http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110452368-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87 |
| filingDate | 2019-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110452368-B |
| titleOfInvention | Star-comb fluorescent polylactic acid and preparation method thereof |
| abstract | A star-shaped comb-shaped fluorescent polylactic acid and a preparation method thereof belong to the technical field of high polymer materials, and have a structure C- (Pf) n, wherein C is a star-shaped macromolecular initiator residue, P is polylactic acid, f is a fluorescent functional group, n is a star-shaped branching degree, and n is more than or equal to 3; the number average molecular weight of the star-shaped comb-shaped fluorescent polylactic acid is 1 multiplied by 10 4 ‑50×10 4 g/mol, single-arm number-average molecular weight of 0.1X 10 4 ‑2×10 4 g/mol; the star-shaped macroinitiator is a star-shaped hydroxylated polymer, the number of hydroxyl groups is 8-60, and the number average molecular weight is 0.1 multiplied by 10 4 ‑2×10 4 g/mol; the fluorescence functional group is a carboxyl-containing fluorescent micromolecule, and the end capping rate of the fluorescent micromolecule is 10-100%. Firstly, a star-shaped hydroxylated polymer initiator is synthesized by utilizing active anion reaction, lactide is catalyzed to carry out ring-opening polymerization by taking organic base as a catalyst, a class of star-shaped comb-shaped polylactic acid is synthesized to carry out graft reaction with a fluorescence functional group, and the star-shaped comb-shaped hyperbranched fluorescent polylactic acid is prepared. The functionalization method is simple, the synthesis reaction condition is mild, and the star-shaped comb-shaped hyperbranched structure effectively improves the polymer performance and the fluorescence development efficiency. |
| priorityDate | 2019-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.