We use small-angle neutron scattering (SANS) to study labeled short chains with and without the influence of an entangled and highly stretched surrounding environment of longer chains. We find unequivocal evidence of nematic effects as the blend chains in steady state flow are stretched a factor ∼1.5 more from the presence of the long chain nematic field. In the pure melt we confirm that the no...

The poly(lactic acid)/ethylene methyl acrylate copolymer (PLA/EMA) blends were melt blended with by a twin-screw extruder. The phase morphologies, mechanical, and rheological properties of the PLA/EMA blends with three weight ratios were investigated. The results showed that the addition of EMA improves the toughness of PLA at the expense of the tensile strength to a certain degree. All the PLA...

The use of biodegradable polymers in tissue engineering has been widely researched due to their ability degrade and release components a controlled manner, allowing for the potential regeneration tissues. Melt blending is common method controlling degradation rate these polymers, which involves combining materials molten state create homogenous mixture with tailored properties. In this study, p...

High density polyethylene (HDPE) / ultra high molecular weight (UHMWPE) blend is expected as an all-polyolefin recycle material that can achieve both mechanical properties and a continuous melt-mixing process. In order to improve the of polymer blends, optimal mixing required good dispersibility low degradation. this study, effect conditions on dispersion degradation behavior HDPE/UHMWPE blends...

Nanocomposites films of (polymer blend-ceramics) were prepared from (PVA-PAA) blend and (PVA-PAA) blend doped with niobium carbide nanoparticles for humidity sensors have low cost, easy fabrication, high sensitivity, lightweight and high corrosion resistance. The structural, electrical and optical properties of (PVA-PAA-NbC) nanocomposites have been studied. The D.C electrical properties of (PV...

Inside Cover: Biaxial melt-drawing of blend films composed ultrahigh molecular weight polyethylene (UHMW-PE) and normal (NMW-PE) produce a unique network structure consisting 30 nm thick homogeneous folded chain crystals. Subsequent biaxial solid-drawing produces nanoporous covering large area the membrane surface (120 mm × 120 mm). Consistence porousness robustness is highly desirable for vari...

PURPOSE To report a case of corneal melting in a patient with fornix foreshortening being treated with reformulated generic diclofenac. METHODS Case report. RESULTS An asymptomatic 76-year old man presented with central corneal melting while being treated with reformulated generic diclofenac. This formulation did not contain the vitamin E derivative, tocophersolan, which has been felt to co...

We present the case of a young male that suffered from fungal corneal abscess and corneal melting. The patient was treated successfully by corneal cross-linking. Taking into account our experience from this case, we offer to consider corneal cross-linking as a therapeutic option in cases of fungal keratitis.