Abstract The anisotropy of the swelling rubber is examined both theoretically and experimentally. Flory theory extended to account for anisotropic swelling, allowing determination average molecular weight between cross-links with first time. In addition, specimens from five commercial rubbers manufactured using either compression-moulding or sheet-rolling processes are swollen in appropriate or...

Abstract The crosslink density of elastomers is the essential property that determines many other but especially mechanical product properties. Different raw materials, recycled and bio-based influence vulcanization may change when they are used as a substitute to conventional materials. Aim this study develop procedure allows reliable determination in highly filled EPDM compounds basis for fut...

The effect of cross-linking layer-by-layer (LbL) films consisting of bioreducible poly(2-dimethylaminoethyl methacrylate) (rPDMAEMA) and DNA is examined with regard to rigidity, biodegradability, cell adhesion, and transfection activity using 1,5-diiodopentane (DIP) cross-linker. DIP chemically reacts with the tertiary amines of rPDMAEMA, altering the chemical composition of these LbL films. Th...

We used a combined ion pairing - organic matter speciation model (NICA-Donnan) to predict the complexation of iron (Fe) at ambient pH and temperature in Celtic Sea. optimized our by direct comparison with Fe determined Adsorptive Cathodic Stripping Voltammetry using added Fe-binding ligand 1-nitroso-2-naphthol (HNN) presence absence natural matter. compared simulated titrations obtained via app...

The cell-model and its treatment on the Poisson-Boltzmann level are two important concepts in the theoretical description of charged macro-molecules. In this brief contribution to Ref. [1] we provide an introduction to both ideas and summarize a few important results which can be obtained from them. Our article is organized as follows: Section 1 outlines the sequence of approximations which ult...

We show that a spontaneous bending of single-layer bolaamphiphiles results from the frustration due to the competition between core-core and tail-solvent interactions. We find that spherical vesicles are stable under rather general assumptions on these interactions described within the Flory-Huggins theory. We consider also the deformation of the vesicles in an external magnetic field that has ...

1. Analyses have been made of the electrolytes and proteins of serum and transudates from human subjects. 2. The distribution ratios of HCO(3), Cl, Na, and H(+) deviated from unity as predicted by the Gibbs-Donnan law for similar heterogeneous systems. 3. Analyses of serum, and of artificial salt solutions approximating edema fluid in composition, after equilibration across collodion membranes ...