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- W2187497846 abstract "A B ST R A C T Modern polymer chemistry is highly progressive in tailoring polymers to specific requirements such as mechanical, thermal and chemical stability, with better performance with wide range of pore size. Composite materials combine and maintain two or more distinct phases to produce a material that has properties far superior than either of the base materials. Nanoparticles made of chitosan, a naturally occurring polymer isolated from crab and shrimp shells, have shown to be promising as carriers of anticancer drugs, antitumor genes, and other novel therapeutic agents. Cross linking agents improve the properties of polymer and their products. Polymer nanocomposited are a class of reinforced polymer with low quantities of nanometric-sized clay particle, which improved their fair resistance, strength and its porosity deceases. Hence, in the present work nanochitosan was prepared using sodium tripolyphosphate and composite of nanochitosan were prepared with methylcellulose in the presence of clay. However, a greater understanding of the nanoscale features of clays, and the ability to disperse the ultrafine layers within other materials has led to increased interest in their application in composite materials; to provide properties to lightweight polymers that would usually only be found in heavier or more expensive materials (such as glass or metals). The formation of the polymer membrane made by the immersion precipitation process depends on a large number of material and process specific parameters such as choice of the polymer (molecular weight, molecular weight distribution), choice of the solvents, choice of the casting solution temperature and the casting atmosphere. The composites were analyzed for their thermal stability, porosity, X-ray diffraction studies, etc. The results show that the addition of clay along with the nanosized chitosan had decreased the transparency of methylcellulose and with decreased pore size suitable for developing as RO membranes." @default.
- W2187497846 created "2016-06-24" @default.
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- W2187497846 date "2012-01-01" @default.
- W2187497846 modified "2023-09-24" @default.
- W2187497846 title "Development of Nanopolymer composite membranes of Chitosan for reverse osmosis" @default.
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