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SYNTHESIS AND DESCRIPTION OF A POLYCARBOXYLATE SUPERPLASTICIZER BASED ON POLYOXYETHYLENE ISOPENTENYL ETHER.

Authors

Ismailov Feruz

Rubric:Chemistry
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Annotation

This research was conducted to evaluate a new type of polycarboxylate superplasticizer. For the synthesis of a polyarboxylate superplasticizer with high water-lowering capacity, polyoxyethylene ether (TPEG) and acrylic acid (AC) were used as monomers, ammonium persulfate as an initiator, and thioglycolic acid (TGC) as a chain transfer agent. The work discussed the influence of additives on the flowability and shrinkage of the concrete cone. The structure of the water-reducing additive based on carbonic acids was described using infrared spectroscopy. The study also assessed the influence of various series of polyhydroxyethylene ether (TPEG)), the amount of acrylic acid (AA), and ammonium persulfate.

Keywords

polycarboxylate superplasticizer
carboxyl density
cement paste flowability

Authors

Ismailov Feruz

References:

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3. K. Magarotto, I. Torresan, N. Zeminian, Effect of Alkaline Sulfates on Performance of Superplasticizers Superplasticizers.Vol.2. Durban, South Africa, May11-16(2003)569-580.

4. K. Yamada, S. Ogawa, S, Hanebara, Controlling of the Adsorption and Dispersing orce of Polycarboxylate type Superplasticizer by Sulfate ion Concentration in Aqueous Phase, Cem. Concr. Res.31(2001) 375-383.

5. S. Li, Q. Yu, J. Wei, et al, Effects of molecular mass and its distribution on adsorption behaviorof polycarboxylate water reducers, Journal of the Chinese Ceramic Society, 1 (2011) 81-83.

6. A. Lange A., J. Plank, Study on the Foaming Behaviour of Allyl Ether-Based Polycarboxylate Superplasticizers, Cem. Concr. Res. 42(2012)484-489.

7. T. Hirata, A. Lange, J. Plank, “Copolymer for dispersant for cement and cement composition”, EP 12 162 379.7(2012).

8. Ismailov F.S.// Yangi sintez qilingan polikarboksilat superplastifikator tarkibini sement kompozitsiyalariga ta’sirini tatqiq qilish. // Scientific –technical. 2025. Том 29. № 2.

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