Preparation and Properties of Polycarboxylate Superplasticizer with Hydroxy Terminated Side Chains

Sheng Hua Lv; Jian Ping Duan; Fang Li

doi:10.4028/www.scientific.net/AMR.455-456.600

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 455-456Preparation and Properties of Polycarboxylate...

Preparation and Properties of Polycarboxylate Superplasticizer with Hydroxy Terminated Side Chains

Abstract:

Maleic anhydride modified polycarboxylates superplasticizes (MPC) was synthesized from allylic poly (ethylene oxide ether) (APEG), maleic anhydride (MAH), sodium methylallyl sulfonate (SMAS) using ammonium persulfate (APS) as initiator. The optimal MPC with best fluidity was got at 90 °C when molar ratio of MAH, APEG, SAMA was 2.75∶1∶0.4 in the present of 4.5 mol% APS of all the monomer molars. MPC which possessed hydroxyl terminated side chains shows some difference in fluidity retarding related to the conventional superplasticizers possessed methoxy terminated side chains.

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Periodical:

Advanced Materials Research (Volumes 455-456)

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600-605

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.455-456.600

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Online since:

January 2012

Authors:

Sheng Hua Lv, Jian Ping Duan, Fang Li

Keywords:

Fluidity, Polycarboxylate, Superplasticizer

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