TITLE:
Utilization of Trimethylolpropane Based Hyperbranched Poly(Amine-Ester) as New Polymeric Admixture
AUTHORS:
Amal Amin Ibrahim, Ahmed El-Sayed Abdel-Magied, Mohamed Sayed Selim, Magdy Mohamed Hussein Ayoub
KEYWORDS:
Hyperbranched Polymers; Poly(Amine-Ester); Ordinary Portland Cement; Compressive Strength
JOURNAL NAME:
Open Journal of Organic Polymer Materials,
Vol.2 No.2,
April
24,
2012
ABSTRACT: Hyperbranched poly(amine-ester) (HBPAE) was synthesized via pseudo-one-step process between trimethylolpropane as a core molecule and N, N-diethylol-3-amine methylpropionate as the AB2 branched monomer. The prepared polymer was analyzed by IR, GPC, 1H-NMR and thermal analysis (TGA and DSC). The performance of the polymer in cement was tested by measuring the effect of 1, 3 and 5 wt% of HBPAE solutions on the properties of Ordinary Portland Cement. Water of consistency, setting times, bulk density, apparent porosity, compressive strength and combined water content of the polymer/cement pastes were studied. The results showed that water of consistency and apparent porosity decreased while setting times, compressive strength, combined water and bulk density increased with the polymer addition.