Soluble polymers have been used as supports for reagent/catalyst immobilization and synthesis. Two polymers are commonly used in this context, linear polystyrene and poly(ethylene glycol). The complementary solubility properties of these polymers allow access to a wide range of chemistries. Parallel and combinatorial libraries of small molecules have been prepared using these polymers, and reag...

Blood cells are key component of organism for their survival and has profound role in defence mechanism of invertebrates similarly in bivalve species, the key role is healing wound and nutrients transportation. The Anadara antiquata is unique because of haemoglobin in their haemolymph and it is commonly found in Pakistani coast.  Present investigation revealed three types of Blood cells, namel...

kevlar is one of the fbers which is used in heavy industrial productions such as, shipping, military and weaving for reinforcement of composites. initial polymer of kevlar or poly(para-phenylene terephthalamide) is an oriented liquid crystal polymer. existence of aromatic group in the main chain leads to formation of rigid-rod molecules in the polymer, high strength and high modulus in it is fb...

Supported on activated carbon gold colloidal nanoparticles have been prepared in the presence of stabilizing polymer PVA and PVP (polyvinylalcohol, polyvinylpyrrolidone). The effect to Au weight ratio was investigated, for synthesizing with different particle size distribution. By varying polymer/Au wt/wt ratio, mean diameters from 3 8 nm were synthesized. synthesized catalysts studied liquid p...

Aromatic aldehydes are efficiently condensed with 2'-hydroxyacetophenone by polymer-supported basic ionic liquid as an excellent heterogeneous catalyst utilizing the Claisen–Schmidt reaction. Microwave irradiation has been employed, providing flavanone in good yield and short reaction time.

We report the design and results of a novel process combining 3D printing foaming to produce microfoamed polymeric structures, from simple strands more complex architectures, using physical blowing agents. Foaming processes are extensively operated in cellular materials industry pores, yet without spatial control their positioning. This intrinsic stochasticity may introduce imperfections, which...

Aromatic aldehydes are efficiently condensed with 2'-hydroxyacetophenone by polymer-supported basic ionic liquid as an excellent heterogeneous catalyst utilizing the Claisen–Schmidt reaction. Microwave irradiation has been employed, providing flavanone in good yield and short reaction time.