Synthesis and characterization of novel copolymers of poly(isopentenyl PEG-co-allyl PEG), their performance in cement mortar and comparison with physical blends

Yıl 2018, Cilt: 31 Sayı: 3, 759 - 773, 01.09.2018

Guralp Ozkoc

Öz

The aim of this study is the synthesis and characterization
of the novel copolymers of poly(isopentenyl PEG-co-allyl PEG) (TPEG-co-APEG)
and the investigatation of their influence on the properties of the cement
mortar. The performance of the copolymers was compared with the physical blends
of TPEG and APEG having the similar TPEG/APEG ratio. In addition, a commercial
MPEG type PC was used as a control in the experiments. The FTIR and H-NMR
proved that the copolymerization was successfully achieved. GPC enlightened the
change of molecular weight of the copolymers. The dispersion, flow retention
and the strength of the mortars prepared with copolymers or physical blends
were compared. It was found that the strength and the adsorption of the
copolymers were better than that of blends, whereas flow retention of the
blends were better in comparison to the copolymers.

Anahtar Kelimeler

polycarboxylates, copolymerization, cement additives

Kaynakça

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