http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109942754-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F261-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F118-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F118-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F261-04 |
| filingDate | 2019-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109942754-B |
| titleOfInvention | Method for preparing delayed coagulation type superplasticizer by atom transfer radical polymerization |
| abstract | The invention relates to a method for preparing a delayed coagulation type superplasticizer by atom transfer radical polymerization. The invention adopts a retardation type monomer and a carboxylic acid small monomer as main reaction raw materials, and prepares the retardation type superplasticizer by a method of firstly carrying out Atom Transfer Radical Polymerization (ATRP) and then carrying out alcoholysis and then copolymerization, namely, the retardation type monomer is used as a reactant, and the Atom Transfer Radical Polymerization (ATRP) is carried out under an initiation system consisting of an unsaturated initiator, a transition metal halide and a ligand to obtain an unsaturated large monomer, then the alcoholysis is carried out to obtain the retardation type large monomer, and the retardation type large monomer and the carboxylic acid small monomer are copolymerized in an aqueous solution to prepare the retardation type superplasticizer. The invention utilizes the technical means of controllable polymerization to creatively design and synthesize the functional side chain consisting of the retarding structural units, replaces the traditional polyether side chain structure, and the superplasticizer presents excellent capability of dispersing cement paste, can obviously delay the setting time of the cement paste, improves the later strength of concrete, and realizes multiple effects of high water reduction, slump loss prevention, retarding and the like. |
| priorityDate | 2019-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 128.