Preparation and Properties of Polycarboxylate Superplasticizer with Hydroxy Terminated Side Chains
2012 ◽
Vol 455-456
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pp. 600-605
Keyword(s):
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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Keyword(s):
1985 ◽
Vol 23
(10)
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pp. 2181-2191
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Keyword(s):
2001 ◽
Vol 82
(3)
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pp. 541-545
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Keyword(s):
2014 ◽
Vol 148
(1-2)
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pp. 57-66
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2000 ◽
Vol 77
(1)
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pp. 1-7
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