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C. Gao and D. Yan, “‘A2 + CBn’ Approach to Hyperbranched Polymers with Alternating Ureido and Urethano Units,” Macromolecules, Vol. 36, No. 3, 2003, pp. 613620.

has been cited by the following article:

• 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.