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Synthesis and characterization of interpenetrating polymer network based on sodium alginate and methacrylic acid and potential application for immobilization of TiO 2 nanoparticles
Author(s) -
Lučić Škorić Marija,
Milosavljević Nedeljko,
Radetić Maja,
Šaponjić Zoran,
Radoičić Marija,
Kalagasidis Krušić Melina
Publication year - 2015
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24141
Subject(s) - materials science , methacrylic acid , interpenetrating polymer network , nanocomposite , thermogravimetric analysis , poly(methacrylic acid) , aqueous solution , photodegradation , sorption , nuclear chemistry , radical polymerization , fourier transform infrared spectroscopy , polymer , chemical engineering , polymer chemistry , polymerization , photocatalysis , adsorption , chemistry , organic chemistry , composite material , catalysis , engineering
An interpenetrating polymer network (IPN) based on the sodium alginate (A) and partially neutralized poly(methacrylic acid) (MAA) was prepared by free radical polymerization followed by additional cross‐linking of sodium alginate with calcium ions. Obtained material (A/MAA IPN) was characterized by FTIR spectroscopy, thermogravimetric analysis, scanning electron microscopy, and rheological measurements. Swelling behavior of synthetized IPN has been also investigated. TiO 2 nanoparticles (TiO 2 NPs) were immobilized onto A/MAA IPN by dip‐coating method and obtained TiO 2 /IPN nanocomposite was used for removal of the methylene blue (MB) from aqueous solution. The photodegradation (under illumination) and sorption (in the dark) processes for dye removal were monitored through decrease of dye concentration in the solution by UV/VIS spectrometer. The TiO 2 /IPN nanocomposite sorbed approximately 93% of the MB from a 10 mg L −1 MB solution in the dark, but no degradation occurred. Likewise, more than 93% of dye was removed after 8 h of illumination. However, after 24 h of illumination, the samples were discolored indicating that dye molecules were successfully degraded. Thus, the TiO 2 /IPN nanocomposite could be utilized in the photodegradation–sorption process for the abatement of pollutants in water. POLYM. ENG. SCI., 55:2511–2518, 2015. © 2015 Society of Plastics Engineers