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Received July 25, 2013
Accepted December 30, 2013
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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
Korea Institute of Industrial Technology, 89, Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do 331-822, Korea 1Department of Chemical Engineering, Keimyung University, Dalseo, Deagu 704-701, Korea
Korean Journal of Chemical Engineering, May 2014, 31(5), 911-917(7), 10.1007/s11814-013-0297-z
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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).
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Rha CY, Kim CY, Lee CS, Kim KI, Lee SK, Cement Concrete Res., 29, 231 (1999)
Xie Y, Liu Y, Long G, J. Wuhan Univ. Technol., 23, 303 (2008)
Xueguan W, Dongxu L, Qinghan B, Ligun G, Mingshu T, Cement Concrete Res., 17, 709 (1987)
Sari A, Alkan C, Karaipekli A, Onal A, Energy Conv. Manag., 49(2), 373 (2008)
Pompe T, Zschoche S, Herold N, Salchert K, Gouzy MF, Sperling C, Werner C, Biomacromolecules, 4(4), 1072 (2003)
Henry SM, El-Sayed MEH, Pirie CM, Hoffman AS, Stayton PS, Biomacromolecules, 7(8), 2407 (2006)
Yin XC, Stover DH, Macromolecules, 36(23), 8773 (2003)
Bunyakan C, Hunkeler D, Polymer, 40(23), 6213 (1999)
Bunyakan C, Armanet L, Hunkeler D, Polymer, 40(23), 6225 (1999)
Wang MT, Zhu XG, Wang SX, Zhang LD, Polymer, 40(26), 7387 (1999)
Hou SS, Kuo PL, Polymer, 42(6), 2387 (2001)
Tang CY, Ye SH, Liu HQ, Polymer, 48(15), 4482 (2007)
Jonsson JE, Hassander H, Tornell B, Macromolecules, 27(7), 1932 (1994)
Chou TM, Prayoonthong P, Aitouchen A, Libera M, Polymer, 43(7), 2085 (2002)
Lothenach B, Matschei T, Moschner G, Glasser FP, Cement Concrete Res., 38, 1 (2008)
Yin XC, Stover HDH, Macromolecules, 35(27), 10178 (2002)
Atici OG, Akar A, Rahimian R, Turk. J. Chem., 25(3), 259 (2001)
Ogawa N, Honmyo K, Harada K, Sugii A, J. Appl. Polym. Sci., 29, 2851 (1984)
Sclavons M, Franquinet P, Carlier V, Verfaillie G, Fallais I, Legras R, Laurent M, Thyrion FC, Polymer, 41(6), 1989 (2000)
Meth PK, Monteiro PJ, Concrete: Microstructure, Properties, and Materials, 3rd Ed. McGraw-Hill, New York (2006)
Lu YQ, Miller JD, J. Colloid Interface Sci., 256(1), 41 (2002)
Jugroot CM, van de Ven TGM, Whitehead MA, J. Phys. Chem. B., 109, 7022 (2005)
Ogawa I, Yamano H, Miyagawa K, J. Appl. Polym. Sci., 47, 217 (1993)
Luo YD, Dai CA, Chiu WY, J. Colloid Interface Sci., 330(1), 170 (2009)
Li A, Zhang J, Wang A, Polym. Adv. Technol., 16, 675 (2005)
Snuparek J, Cermark V, Eur. Polym. J., 33(8), 1345 (1997)
An L, Wang AQ, Chen JM, J. Appl. Polym. Sci., 94(5), 1869 (2004)
Diamond S, Cement Concrete Res., 30, 1517 (2000)
