الفهرس 
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Abstract
We try to find a solution for removing methyl red from wastewater As methyl red have mutagenic and carcinogenic effect can damage both animal and human by preparing an economic polymer. These polymeric samples is (CS/PACM) chitosan polyacrylamide hydrogel and (CS/PACM-gr-PNMA) Chitosan/polyacrylamide hydrogel grafted poly (N-methylaniline). The hydrogel was prepared by copolymerization of chitosan and acrylamide in presence of KPS as oxidizing agent. And then we grafted the yield by poly N-methyl aniline. And tasted the polymeric samples and studied the kinetic and thermodynamics parameters for them.
Chitosan/polyacrylamide hydrogel grafted poly (N-methylaniline) (CS/PACM-gr-PNMA) was synthesized by chemical oxidative radical polymerization by using potassium persulphate (KPS). The obtained polymer samples were characterized using IR and Uv-visible spectroscopy. Both surface properties and thermal stability were studied using XRD, SEM, BET and TGA techniques respectively. The characterized polymeric samples were used as a new sorbent for methyl red (MR) as an example of azo-dyes present in industrial wastewater which cause physiological damages was chosen to uptake. The influence of contact time, adsorbent dose, and temperature on the efficiency of CS/PACM-gr-PNMA towards the removal of MR were investigated. The efficiency was equal to 98% through 120 min at room temperature. The obtained data showed that (∆H=-21.478kJ mol-1), so adsorption process was spontaneous and followed Freundlich isotherm. The sorption process of MR on the surface of CS/PACM-gr-PNMA was procceed via the Lagergren pseudo-second order reaction. This confirm the removal mechanism by both chemical and physical adsorption of MR with both unpaired and electrons present in polymer structure on NH, NH2, and benzene or quinoid units respectively. In addition, it can explains the chemical adsorption type which occurs through sharing between the used adsorbent materials and the dissolved materials beside the physical adsorption.
As our aim to find a method to be safe, economic, and rapid for removing MR. only in this thesis we will speak on all components which inter in this polymeric samples. We will speak on chitosan, polyacrylamide, chitosan and polyacrylamide hydrogel, PNMA and methyl red dye.
Key Words:
Chitosan; Polyacrylamide and poly(N-methylaniline) hydrogel; Oxidative chemical copolymerization; Antimicrobial activity; BET analysis Methyl red removal; Physical adsorption studies; Freundlich isotherm.