Synthesis, characterization, and properties of intercalated poly(2‐ethyl hexylacrylate)/silicate nanocomposites: XRD, TEM, IR, TGA, superabsorbency, pressure‐sensitive adhesion, and biodegradation

Abstract

Poly(2-ethyl hexylacrylate) (PEHA)/silicate composites were synthesized by the emulsion polymerization of ethyl hexylacrylate (EHA) in the presence of sorbitol and the composites were analyzed to be of nano order. The nanocomposites so prepared were shown to be intercalated by X-ray diffraction, transmission electron microscopy, and infrared spectroscopy. The thermal stability of the nanocomposites was found to be appreciably increased. These nanocomposites are potentially suitable for novel uses such as pressure-sensitive adhesives and superabsorbents. The biodegradability and superabsorbency of these nanocomposites were evaluated for their commercial potential.

A novel approach to the synthesis of SiO2–PVAc nanocomposites using a one-pot synthesis in supercritical CO2

“…The most popular method is simply by mixing the two obtained parts of polymer and inorganic particles, either by melt compounding, which adds inorganic particles into a polymer melt, 23,24,30 or by a solution obtained by dissolving the polymer in an organic solvent, 25,26,31 then evacuating the solvent after mixing with the inorganic particles. In addition, usually the inorganic particles or the applied polymer requires further modification by adding a coupling agent to enhance the interaction of the inorganic part with the organic polymer for coupling to the polymer matrix.…”

Synthesis and pressure sensitive adhesive performance of poly (EHA‐co‐AA)/silicate nanocomposite used in transdermal drug delivery

“…This is in good agreement with our previous report. 4 The space produced by the intercalated silicate layers, may be engaged by the entrapped drugs in the polymer matrix and also adsorbed onto the surface of the nanoparticles. So the drug molecules may be physically adsorbed only on the polymer surface.…”

“…The bioadhesion offered by nanoparticles 18 could be attributed to several factors like an increase of the adhesive force due to decrease in size (nanoscopic). In our previous article 4 we report the synthesis and characterization of intercalated homopolymer/silicate nanocomposites (PEHA/ SS), but it fails to exhibit TDD property. As a result we are tempted to prepare a copolymer based nanocomposite that shows remarkable adhesion in TDDS.…”

“…The improved properties of these nanocomposites include mechanical, [1][2][3][4] thermal, 5,6 flammability 7,8 properties, and are related to the dispersion and nanostructure of the layered silicate in the polymer.…”

Preparation and characterization of biodegradable waterabsorbent PAN/SS nanocomposite

“…Nanocomposites, especially polymer layered silicate nanocomposites [1] (PLSNs), are emerging as the most significant and new breed of composite materials due to their extensively enhanced mechanical [2][3][4], thermal [5][6], and flammability [7] properties. These are related to the dispersion and nanostructure of the layered silicate in the polymer.…”