Utilization of Trimethylolpropane Based Hyperbranched Poly(Amine-Ester) as New Polymeric Admixture

• 作者: Ahmed El-Sayed Abdel-Magied Amal Amin Ibrahim Magdy Mohamed Hussein Ayoub Mohamed Sayed Selim
• 来源期刊: 有机高分子材料期刊(英文)
• 学科: 化学
• 关键词: HYPERBRANCHED Polymers Poly(Amine-Ester) Ordinary Portland Cement Compressive Strength
• 年，卷（期）: yjgfzclqkyw,（2）
• 页码范围: 23-28
• 页数: 6页
• 分类号: O6

摘要

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.