Colloids and Surfaces B-Biointerfaces 109:259–265Īrica MY (2000) Immobilization of polyphenol oxidase on carboxymethylcellulose hydrogels beads: preparation and characterization. Polym Bull 63:159–171Īndac M, Galaev IY, Denizli A (2013) Molecularly imprinted poly(hydroxyethyl methacrylate) based cryogel for albumin depletion from human serum. Polymer 49:2046–2054ĭalaran M, Emik S, Güçlü G, Iyim TB, Özgümüs S (2009) Removal of acidic dye from aqueous solutions using poly(DMAEMA-AMPS-HEMA) terpolymer/MMT nanocomposite hydrogels. Horak D, Hlidkova H, Hradil J, Lapcikova M, Slouf M (2008) Superporous poly(2-hydroxyethyl methacrylate) based scaffolds: Preparation and characterization. Kumar A, Tyagi P, Singh H, Kumar Y, Lahiri SS (2012) Synthesis and characterization of a porous poly(hydroxyethylmethacrylate-co-ethylene glycol dimethacrylate)-based hydrogel device for the implantable delivery of insulin. Liu Q, Hedberg EL, Liu ZW, Bahulekar R, Meszlenyi RK, Mikos AG (2000) Preparation of macroporous poly(2-hydroxyethyl methacrylate) hydrogels by enhanced phase separation. Macromol Symp 200:283–290Īntonietti M, Caruso RA, Goltner CG, Weissenberger MC (1999) Morphology variation of porous polymer gels by polymerization in lyotropic surfactant phases. Vidaurre A, Cortazar IC, Meseguer JM (2003) Water sorption properties of poly(ethyl acrylate-cohydroxyethyl methacrylate) macroporous hydrogels. Vianna-Soares CD, Kim CJ, Borenstein MR (2003) Manufacture of porous cross-linked HEMA spheres for size exclusion packing material. Hradil J, Horak D (2005) Characterization of pore structure of PHEMA-based slabs. Khutoryanskaya OV, Mayeva ZA, Mun GA, Khutoryanskiy VV (2008) Designing temperature responsive biocompatible copolymers and hydrogels based on 2-hydroxyethyl(meth)acrylates. Ma J, Mo MS, Du XS, Rosso P, Friedrich K, Kuan HC (2008) Effect of inorganic nanoparticles on mechanical property, fracture toughness and toughening mechanism of two epoxy systems. Kamoun EA, Menzel H (2012) HES-HEMA nanocomposite polymer hydrogels: swelling behavior and characterization. Zandi-zand R, Ershad-langroudi A, Rahimi A (2005) Silica based organic–inorganic hybrid nanocomposite coatings for corrosion protection. Irzhak VI, Dzhardimalieva GI, Uflyand IE (2019) Structure and properties of epoxy polymer nanocomposites reinforced with carbon nanotubes. coli) bacteria were also tested and it was observed that this effect increased with the amount of TiO 2. ![]() It was obtained that the frequency dependence of the dielectric constant and dielectric loss factor decreased with increasing frequency. Finally, the biological activities of PNCs against gram-positive (S. The dielectric constant ( Ɛ′), the dielectric loss factor (Ɛ′′) and ac conductivity of neat PHEMA and PNCs were also measured for the frequency range of 100 Hz to 2 kHz and for the temperatures of 30 and 180 ☌. ![]() In addition, the swelling values of both PHEMA and PNCs increased with increasing the temperature. As the amount of TiO 2 in the PNCs increased, the degree of swelling decreased. The water holding capacity of PNCs was determined by swelling experiments. By increasing the amount of TiO 2 nanoparticles, the thermal stability and glass transition temperature (T g) of PHEMA was increased. ![]() The thermal activation energies (E a) of the PNCs were estimated by the Ozawa, Kissinger, and Kissinger–Akahira–Sunose methods by using non-isothermal TGA experiments. The results of the characterization experiments showed that the composite successfully synthesized and TiO 2 in the polymer matrix is well distributed, especially for the lowest TiO 2 contained composite (3% TiO 2). The prepared composite materials were characterized by SEM, FTIR, UV–Vis, TGA and XRD techniques. Poly(2-hydroxyethyl methacrylate) (PHEMA) and TiO 2 nanoparticles (NPs) containing polymeric nanocomposites (PNCs) in different mass ratios of TiO 2 (3, 5 and 7%) with respect to PHEMA were synthesized by using the in-situ polymerization/hydrothermal method.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |