The interaction behaviours between components of polyacrylate (PAc)/poly(ethylene oxide) (PEO) and lithium perchlorate (LiClO(4)) were investigated in detail by Attenuated Total Reflectance (ATR)-Fourier Transformed Infrared (FTIR) spectroscopy. Solution cast films of the PAc/PEO and PAc/PEO/LiClO(4) were examined. No obvious shifting of the characteristic ether and ester group stretching modes...

The aim of this work was to study intermolecular interactions in systems containing charged polyion (polyacrylate, PA(-)), charged surfactant (C(16)TA(+)) and nonionic surfactant (C(12)E(5) or C(12)E(8)). To achieve this we have created four different phase diagrams using two different so-called complex salts, C(16)TAPA(25) and C(16)TAPA(6000), both consisting of positively charged surfactant (...

Oil-water emulsion formation is common in oil fields. The a problem which causes an increase production costs and decrease quality. Therefore, demulsifier formulation needed to overcome these problems. use of household waste, particularly disposable diapers, promising alternative. One the substances contained diapers sodium polyacrylate super absorbent polymer, known as polyacrylate. substance ...

BACKGROUND/PURPOSE It is still under discussion which is the best tissue augmenting substance for the endoscopic treatment of children with vesicoureteral reflux (VUR). We describe our preliminary experience (September 2009-November 2011) with polyacrylate-polyalcohol copolymer hydrogel (PPCH). METHODS This is an observational, descriptive, prospective study which included 81 female and male ...

Polyelectrolyte multilayer films assembled from a hydrophobic N-alkylated polyethylenimine and a hydrophilic polyacrylate were discovered to exhibit strong antifouling, as well as antimicrobial, activities. Surfaces coated with these layer-by-layer (LbL) films, which range from 6 to 10 bilayers (up to 45 nm in thickness), adsorbed up to 20 times less protein from blood plasma than the uncoated ...

Absorbent recycled paper products were tested and compared with a sodium polyacrylate gelling agent, Aquatain, for solidifying larval diets of the screwworm, Cochliomyia hominivorax (Coquerel). A recycled newsprint product, Terra-Mulch, when mixed with water and dietary ingredients produced a diet medium of homogeneous texture that supported larval growth and development comparable to the stand...

Corrcspondence/Reprint request: Dr. Ferenc Horkay, Ph.D .. Section oo Tissue Biophysics and Biomimetics, National Institutes of Health, Bldg. 13, Room 3WJ6B, 13 South Drive, Bethcsda, MD 20892, USA.E-mail:[email protected] Abstract The effect of cations on the osmotic properties of chemically cross-linked sodium polyacrylate hydrogels has been investigated. The variation of the osmotic swell...

The swelling behavior of fully neutralized sodium polyacrylate gels was investigated in aqueous solutions of alkali metal (LiCl, NaCl, KCl, CsCl) and alkaline earth metal salts (CaCl2, SrCl2, BaCl2). The total salt concentration and the ratio of monovalent to divalent cations were varied in the biologically significant range. It is found that the concentrations of both monovalent and divalent c...

Despite the low cost and high ionic conductivity of aqueous electrolytes, their practical applications are limited because a withstand voltage 1.2 V The energy density increases in proportion to which is crucial factor for electric double-layer capacitors (EDLCs) with solid polymer electrolytes. In this study, electrolyte solution was made into viscous improve electrolyte. prepared from sodium ...

T he process of debridement is an important step in the preparation of the wound bed in chronic wounds. Ways in which wound debridement can be achieved include surgical, sharp, mechanical, enzymatic and autolytic debridement. Expert opinion and clinical experience suggest that removal of the material such as necrotic tissue and fibrinous slough from the surface of a wound is necessary for the p...