Background and Objectives: Kefiran (Kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. Therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. The expansion of mixed systems can propose kefiran and polyvinyl alcohol (PVOH) as a new composite film. Materials and Methods: Solutions of 20 gr...

Characterization and Evaluation of the Release Kinetics a Model Poorly Water-Soluble Low Dose Drug from Matrix Tablets Composed Blends Swellable Erodible Polymers: Implications for Controlled Complete ReleaseAiman A. Obaidat

We report on novel soluble macromolecules displaying rather peculiar solution behaviour, which allows us to gain full control of their partition into three mutually immiscible liquid media: water, dichloromethane and perfluoro(methylcyclohexane); such polymers may be used as soluble supports for reagents or catalysts, yielding supported species whose solubility preference for one out of three l...

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on regime.

Biodegradable polymers are designed to degrade upon disposal by the action of living organisms. Extraordinary progress has been made in the development of practical processes and products from polymers such as starch, cellulose, and lactic acid. The need to create alternative biodegradable water-soluble polymers for down-the-drain products such as detergents and cosmetics has taken on increasin...

background and objectives: kefiran (kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. the expansion of mixed systems can propose kefiran and polyvinyl alcohol (pvoh) as a new composite film. materials and methods: solutions of 20 gra...

The purpose of this study was to develop a compaction technique to enhance the solubility, dissolution rate and other physicochemical properties of poorly water-soluble drug indomethacin (IM) with different polymers. The IM was compacted with the different polymers like hydroxy propyl methylcellulose (HPMC), Kollicoat IR, Chitosan, Polyvinyl Pyrrolidone without using any binder and solvent. Pol...

Abstract Water-soluble thermoresponsive polymers present either upper critical solution temperature (UCST) or lower (LCST) depending on the location of their miscibility range with water at high temperatures low temperatures. Compared LCST polymers, water-soluble UCST are still less explored until now. In this work three copolymers P(AAm-co-GAA) were synthesized by copolymerizing two acrylamide...

A series of new polyamides containing maleimide pendant group were prepared by low temperature polycondensation of 5-(4-(2,5-dioxo-2H-pyrrol-1(5H)-yl)benzamido)isophthaloyl chloride as a new monomer with various aromatic diamines in NMP. Monomer and polymers structures were identified through FT-IR, 1H-NMR and elemental analysis. Obtained polymers were soluble in polar solvents and non solu...

Water contamination and its purification are a global problem. The current approach to purify water is reduction of impurities to acceptable levels. One of the ways to achieve this is by use of water-soluble polymers that extract organic and metallic contaminants, from water. This paper presents a blend of composite polymers that eliminates both the contaminants simultaneously by the principle ...