NDLI: Synthesis and characterization of cross-linked poly(acrylic acid)-poly(styrene-alt-maleic anhydride) core-shell microcapsule absorbents for cement mortar

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Synthesis and characterization of cross-linked poly(acrylic acid)-poly(styrene-alt-maleic anhydride) core-shell microcapsule absorbents for cement mortar

Content Provider	Semantic Scholar
Author	Hwang, Kiseob Ha, Kiryong
Copyright Year	2014
Abstract	We synthesized core-shell microcapsule absorbents with cPAA (cross-linked poly(acrylic acid)) as the core and PSMA (poly(styrene-alt-maleic anhydride)) as the shell by precipitation polymerization, where the shell served to delay the absorption of excess water in cement mortars. To control shell thickness, the cPAA-PSMA capsules were synthesized with core monomer mass to shell monomer mass ratios of 1/0.5, 1/1, and 1/1.5. We observed the hydrolysis of the PSMA polymer in a cement-saturated aqueous solution by Fourier transform infrared (FT-IR) spectroscopy. Furthermore, core-shell structures were observed for 1/1 (cPAA-PSMA #3) and 1/1.5 (cPAA-PSMA #4) core/shell monomer mass ratios, whereas no core-shell structures were observed for the 1/0.5 (cPAA-PSMA #2) microcapsules by transmission electron microscopy (TEM).
Starting Page	911
Ending Page	917
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1007/s11814-013-0297-z
Alternate Webpage(s)	https://www.cheric.org/PDF/KJChE/KC31/KC31-5-0911.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s11814-013-0297-z
Volume Number	31
Journal	Korean Journal of Chemical Engineering
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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