Acrylate intercalation andin situ polymerization in iron substituted nickel hydroxides

Ion-Exchange Reactions and Photothermal Patterning of Monolayer Assembled Polyacrylate-Layered Double Hydroxide Nanocomposites on Solid Substrates

“…Through a solvothermal route, we successfully prepared PAA(L)-LDH hybrids on Si by adopting direct anion exchange of PAA with carbonate ions. As a novel synthetic method, the present reaction conditions do not require a nitrogen atmosphere to prevent the LDH samples from forming the carbonate LDH phase, which is indispensable in the previous coprecipitation synthesis in polymer solutions . In addition, the coprecipitation and restacking methods thus far have some drawbacks, namely that the precipitate gives very poor crystallinity, limiting control of the reaction conditions such as polymer content without residual polymers in the composite materials.…”

“…Several polymer incorporation methods have been developed for preparing polymer−LDH nanocomposites, such as synthesis of LDH in polymer solutions, restacking of exfoliated LDH in polymer solution, in situ polymerization of intercalated monomer in LDH, or by direct intercalation of high-molecular-weight macromolecules by ion-exchange reaction. − The polymer−LDH materials based on restacking and reconstruction of hydroxide layers over the polymers as a self-assembly process generally gave rise to ill-defined LDH−polymer nanocomposites, even when the polymer of polar functional groups such as those including poly(acrylic acid), poly(vinylsulfonate), and poly(stylenesulfonate) were used,11a because the polymer insertion affects not only the crystallinity but also the dimension and morphology of the pristine LDH host material. The low crystallinity and unnecessary interparticle polymer of LDH−polymer composites were inevitable in the previous preparation methods, which hampered their detailed microstructural analyses.…”

Synthesis of Inorganic−Organic Layered Compounds Using Immiscible Liquid−Liquid Systems under the Distribution Law

“…The other is layered basic metal salts (LBMSs) with a general formula of [M 2+ (OH) 2− x ]A n − x / n · m H 2 O, which contains only one kind of metal ion. Because of their lamellar structure, the layered compounds have attracted much attention as materials for anion exchange, intercalation, catalysis, two-dimensionally confined reaction space, and exfoliation to nanosheets . In addition, unlike LDHs basically containing at least two different metal ions, LBMSs are decomposed into single metal oxides such as ZnO, CuO, NiO, , and Co 3 O 4 , with specific electrical and optical properties.…”

Synthesis and Characterization of Polyoxyethylene Sulfate Intercalated Mg−Al−Nitrate Layered Double Hydroxide

“…Because LDHs have a good anion-exchange property, many reports about the intercalation of organic anions such as anionic surfactants, − large polyoxometalates, and various organic acids − have been published. Recently, the research of LDH/polymer nanocomposites has attracted much attention due to their superior properties compared to the pure polymers. ,− Three major methods were used to prepare the LDH/polymer nanocomposites: in situ polymerization, direct intercalation, and restacking . However, relatively few publications have reported the intercalation of polymers into LDHs directly by the ion-exchange method because LDH layers cannot be exfoliated for their high charge density and polymer molecules are too large to intercalate into the LDH gallery .…”