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Modification of cement with succinic anhydride‐based hyperbranched polyesteramide
Author(s) -
Amin Amal,
Darweesh Hassan M.,
Ramadan Ahmed M.,
Morsi Samir M. M.,
Ayoub Magdy M. H.
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35156
Subject(s) - portland cement , succinic anhydride , crystallinity , materials science , polymer , cement , condensation polymer , diethanolamine , polymer chemistry , chemical engineering , gel permeation chromatography , infrared spectroscopy , organic chemistry , chemistry , composite material , engineering
Two hyperbranched polyesteramides (HYP 1 and HYP 2 ) were prepared by reacting succinic anhydride (ScAn) with both of diisopropanolamine (DiPA) and diethanolamine, respectively, via one‐pot polycondensation reaction. The prepared polymers were analyzed using gel permeation chromatography, infrared spectra, and 1HNMR. The resulting hydroxyl‐ended resins have been successfully applied as polymeric admixtures in two types of cements such as Ordinary Portland cement and Portland limestone cement. The water of consistency decreased by addition of the hyperbranched polymers in both types of cements. Better hydration was observed by incorporation of small amounts of polymers. The infrared spectra and scanning electron microscopy photos of Ordinary Portland cement and Portland limestone cement pastes premixed with HYP 1 and HYP 2 showed no effect on the chemical composition of the cement hydrates where only the morphology and the crystallinity of the formed hydrates were changed. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012