Polyacrylamide−Clay Nanocomposite Hydrogels: Rheological
Polyacrylamide−Clay Nanocomposite Hydrogels: Rheological and Light Scattering Characterization Article in Macromolecules 40(9) · April 2007 with 232 Reads How we measure 'reads'
Rituraj Singh and Vikas Mahto, Preparation, Characterization and Coreflood Investigation of Polyacrylamide/Clay Nanocomposite Hydrogel System for Enhanced Oil Recovery, Journal of Macromolecular Science, Part B, 55, 11, (1051), (2016).
Polyacrylamide−Clay Nanocomposite Hydrogels: Rheological
The free-radical polymerization of acrylamide in aqueous clay dispersions and the structure of the resulting polymer−clay nanocomposite hydrogels have been investigated by rheometry using oscillatory deformation tests. Laponite was used as clay particles in the hydrogel preparation. The reactions were carried out with and without the presence of the chemical cross-linker N,N‘-methylenebis
Polyacrylamide-Clay Nanocomposite Hydrogels: Rheological and Light Scattering Characterization Oguz Okay*,† and Wilhelm Oppermann*,‡ Department of Chemistry, Istanbul Technical UniVersity, 34469 Maslak, Istanbul, Turkey, and Institute of Physical Chemistry, Clausthal UniVersity of Technology, Arnold-Sommerfeld-Str. 4,
Nanocomposite hydrogels - ScienceDirect
O. Okay, W. OppermannPolyacrylamide–clay nanocomposite hydrogels: rheological and light scattering characterization Macromolecules, 40 (2007), pp. 3378-3387
Layered double hydroxide (LDH)/polyacrylamide (PAM) nanocomposite (NC) hydrogels were successfully prepared utilizing Co/Al-LDH nanosheet as inorganic crosslinker, acrylamide as monomer via in-situ free radical polymerization at room temperature in water. The Co/Al-LDH used here is freshly prepared Co/Al-LDH solution with a Tyndall phenomenon, which avoids the exfoliation and dispersion
Synthesis, characterization and rheological behavior of pH
O. Okay, W. OppermannPolyacrylamide-clay nanocomposite hydrogels: rheological and light scattering characterization Macromolecules, 40 (2007), pp. 3378-3387
The swelling degree (SD) of the swollen hydrogel nanocomposite was increased following the addition of polyacrylamide-modified Kaol particles into the hydrogel structures. Rheological characterization showed that an increase in the storage modulus (G′) could be a consequence of a good dispersion of Kaol particles in the polyacrylic acid
Rheology of Poly(N‑isopropylacrylamide)−Clay Nanocomposite
The nanocomposite hydrogels (NC gels) and soft nanocomposites (M-NCs) obtained were flexible and transparent soft materials, regardless of the clay content, that could be prepared in various
Okay O, Oppermann W (2007) Polyacrylamide–clay nanocomposite hydrogels: rheological and light scattering characterization. Macromolecules 40(9):3378–3387 Article
Swelling and Rheological Relationships of Polyacrylamide
Nanocomposite hydrogels were prepared by cross-linking of aqueous solutions of sulfonated polyacrylamide/sodium montmorillonite with chromium triacetate.
Firstly, nanocomposite hydrogels are easier to produce. Secondly, nanoparticles can bring about new functionalities to the hydrogel networks, for example responsiveness to optical, thermal, magnetic, electric stimuli and so on, thus becoming “smart” . These distinctive features make nanocomposite hydrogel a good candidate to be produced in
- What is a polyacrylamide gel made of?
- The polyacrylamide gel is made of the monomer acrylamide, the crosslinker N,N’-methylene bis-acrylamide, the accelerator N,N,N’,N’-tetramethylethylenediamine (TEMED) and the free radical generator APS. Gel buffer solutions must be stacked and resolved to separate NCs as they move through the porous gel when an applied potential is present.
- What is polymerization of acrylamide monomers and bis-acrylamide gels?
- Polymerization of acrylamide monomers and bis-acrylamide. Polyacrylamide gels are characterized by two parameters: total monomer concentration (%T, in g/100 ml) and weight percentage of crosslinker (%C).
- How are polyacrylamide gels prepared?
- Polyacrylamide gels are prepared by free radical polymerization of acrylamide and a comonomer crosslinker such as bis-acrylamide. Polymerization is initiated by ammonium persulfate (APS) with tetramethylethylenediamine (TEMED) as the catalyst (see figure below).
- How to calculate polyacrylamide gel recipes for SDS-PAGE?
- Calculate Polyacrylamide gel recipes for SDS-PAGE Just enter the number of gels(18x16mm) and the percent polyacrylamide needed Enter the number of gels: 12345678910 Enter Desired Percent:
