http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109232818-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-302 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F265-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2688 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-12 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F265-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 |
| filingDate | 2018-07-26^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109232818-B |
| titleOfInvention | Preparation method of pH response type comb-shaped polycarboxylic acid |
| abstract | The invention relates to a preparation method of pH response type comb-shaped polycarboxylic acid. The method comprises the steps of preparing a polycarboxylic acid material by adopting raw materials such as acrylic ester, a pH response type monomer and the like through a method of self-polymerization, graft copolymerization and hydrolysis, wherein the acrylic ester is used as a reaction monomer, the polyacrylic ester with controllable molecular weight is generated through polymerization under the action of an initiator and a chain transfer agent, the polyacrylic ester is grafted and copolymerized with the pH response type monomer to obtain a graft copolymer which takes an acrylic ester polymer as a main chain and takes the pH response type polymer as a side chain, and finally the graft copolymer is hydrolyzed to prepare the polycarboxylic acid with a comb-shaped structure, wherein the main chain is polyacrylic acid and the side chain is the pH response type polymer. The method has mild conditions, saves energy and has high efficiency, introduces the pH response type polymer by a molecular structure design method, synthesizes the polycarboxylic acid with a special functional side chain, successfully realizes the pH response behavior, shows excellent characteristic of inhibiting the shrinkage of cement mortar, and has wide market prospect and popularization and application potential. |
| priorityDate | 2018-07-26^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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