Incorporation of superparamagnetic nanoparticles into poly(urea-urethane) nanoparticles by step growth interfacial polymerization in miniemulsion

Environmental implications and applications of engineered nanoscale magnetite and its hybrid nanocomposites: A review of recent literature

“…The capabilities of magnetic response remain unchanged indicating durable washing [75]. Superparamagnetic poly(urea-urethane), PUU, nanocomposites have been obtained by interfacial miniemulsion polymerization with high encapsulation efficiency [76]. Magnetic PVA@Fe3O4/CA/AS nanocomposite films (PVA = poly(vinyl alcohol), CA = citric acid, AS = ascorbic acid) containing 4, 8, and 12 wt% of the modified NPs have been successfully manufactured under ultrasonic irradiation [77].…”

Simultaneous single-step immobilization of Candida antarctica lipase B and incorporation of magnetic nanoparticles on poly(urea-urethane) nanoparticles by interfacial miniemulsion polymerization

“…2b) showed an increase in the nanoparticle diameter with addition of 10 wt% of MNPs-OA (in relation to IPDI monomer), due to the encapsulation of the magnetic material (identified as smaller and darker NPs with diameters between 5 and 15 nm [17]). As shown by Chiaradia et al [17] these magnetic PUU nanoparticles, with characteristic absorption bands of urethane and urea groups (PUU copolymer) and of the Fe-O bond of magnetite in their FTIR spectrum, show typical superparamagnetic behavior. TEM images of immobilized CALB lipase on magnetic PUU NPs by interfacial miniemulsion polymerization (Fig.…”

“…PUU nanoparticles with encapsulated MNPs was based on the step miniemulsion polymerizations as described by Chiaradia and co-workers [17]. The miniemulsion formulations of the present work are shown in Table 1.…”

“…After functionalization, MNPs can be encapsulated in situ during the synthesis of polymers by different polymerization techniques, including miniemulsion polymerization [15][16][17][18].…”

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe2O3 by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

“…Among the magnetic nanocomposites, those formed by a combination of magnetic and polymer particles deserves special attention due to their great affinity with biological systems and the ability to alter the variation of magnetic behavior under the action of magnetic fields . The specialized literature reports several researches on the development of magnetic nanocomposites using polymeric matrixes.…”