A comparative study of two polyelectrolyte complexes

Abstract

Interpenetrating polymeric networks (IPNs) based on natural sodium alginate (NaAlg) biopolymer matrix and synthetic hydrophilic polymer were synthesized using sequential method. Poly(acryloxyethyl-trimethylammonium chloride-co-2-hydroxyethyl methacrylate) (poly(Qco-H)) with high content of quaternary ammonium groups (Q units) was used as a synthetic polymer for the purpose. Since NaAlg has anionic nature and poly(Q-co-H) is a polycation polyelectrolyte complex (PEC) was also prepared via ion interaction between these natural and synthetic components by mixing their water solutions. The all prepared materials were characterized by thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (ATR-FTIR). The comparative analysis of IPNs of different compositions was carried out. Behavior of IPNs was also compared to PEC, material obtained via simple ionic interaction between oppositely charged polymers.

Use of Poly(vinyl alcohol)-Malic Acid (CLHPMA) Hydrogels and Chitosan Coated Calcium Alginate (CCCA) Microparticles as Potential Sorbent Phases for the Extraction and Quantitative Determination of Pesticides from Aqueous Solutions

“…These weight loss processes, with peaks centered at 67.3 and 246.1 • C for the NaALG and at 62.4 and 299.1 • C for CT, were shown in Figure 8b,c, respectively. Finally, these results are in agreement with the data reported by Valdés et al [40] and Zawadzki et al [41] for NaALG and CT, respectively.…”

Synthesis and characterization of polyelectrolyte complex microparticles for drug release

“…24,25 The combination of sodium alginate with this acrylic polymers could be a promote scaffold in biomedical application. 12,24,25,26 Oral administration is one of the preferred routes for drug because of its noninvasive nature, convenience, safety and patient complacence. Moreover in case of oral drug delivery, the use of microparticles loaded with antibiotic would be beneficial for various diseases such as gastric diseases, 27 intestinal infections, 28 ulcerative colitis, and carcinomas.…”