Abstract
A new polycarboxylic acid-based superplasticizer(PSStNa-b-PAANa-b-PMPEG) was synthesized via the combination of atom transfer radical polymerization(ATRP) and resin exchanged technology. PSStNa-b-PAANa-b-PMMA was prepared using PSStNa-b-PAANa as macromolecule initiator by atom transfer radical polymerization (ATRP) of methyl methacrylate, and then reacted with methoxypoly (ethylene glycol)(MPEG) to synthesize triblock copolymer. The molecule structure of polycarboxylic acid-based superplasticizer was studied by FT-IR and 1H-NMR. And then the influence of reaction time on the fluidity of cement paste was investigated. The result shows that our design is successful and the product reaction time with 26 h has the best performance in this way.
Original language | English |
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Pages (from-to) | 16-18 |
Number of pages | 3 |
Journal | Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering |
Volume | 27 |
Issue number | 3 |
State | Published - Mar 2011 |
Externally published | Yes |
Keywords
- Atom transfer radical polymerization
- Fluidity of cement paste
- Polycarboxylic acid
- Superplasticizer