SINCE Ridley (1951) described his operation, there has been considerable interest and speculation about the possible reaction of the human eye to the presence of an acrylic lenticulus. The clinical impression has been that a certain amount of irritation occurs, as evidenced by frequent iridocyclitis and almost invariable pigment disturbance, but a difference of opinion appears to exist as to th...

hydrogels, due to their unique potentials such as high-water content and hydrophilicity are interest for the controlled release of drug molecules. the present study aims to create a controlled-release system through the preparation and characterization of hydrogels based on ph-sensitive polymers such as poly (acrylic acid). poly (acrylic acid), p(aa), hydrogel has been synthesized by radical po...

We report an effective strategy for the synthesis of semi-crystalline block copolyethers with well-defined architecture and stereochemistry. As an exemplary system, triblock copolymers containing either atactic (racemic) or isotactic (R or S) poly(propylene oxide) end blocks with a central poly(ethylene oxide) mid-block were prepared by anionic ring-opening procedures. Stereochemical control wa...

The development of new sustainable routes towards better environmental footprint composites for marine boatbuilding is motivated by the absence eco-friendly and economically viable recycling techniques to deal with growing end-of-life thermoset boats waste increasing restrictive legislation. Thermoplastic may offer possibility recover raw materials from retired parts, which could have a substan...