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Size optimization of silver nanoparticles synthesized by gelcasting using the Taguchi method

In the present study, silver nanoparticles were synthesized by decomposition of AgNO3 via gelcasting. Methacrylamide was used as a low toxic monomer for gel formation. Effect of monomer content (MAM), cross-linker to monomer ratio (MBAM/MAM), silver salt to monomer ratio (AgNO3/MAM), duration of calcination, and temperature of calcination were investigated to optimize the size of nanoparticles....

Determination of Residual Methylmethacrylate Monomerin Denture Base Resins by Gas Chromatography

Acrylic base resins are widely used in orthopedics and dental surgery. It is generally accepted that due to the incomplete conversion of methyl methacrylate (MMA) monomer to the polymer form during polymerization of the resin, some MMA monomers remain in the hardened material. MMA monomer has been reported to cause abnormalities or lesions in several organs of animals. Study of the literatures ...

Studies of Migration of Styrene Monomer from Polystyrene Packaging into the Food Simulant

Synthesis, characterization and polymerization of a novel acrylate monomer containing both 4H-pyran-4-one and 1,2,3-triazole moiety and evaluation of their antibacterial activity

A novel acrylate monomer containing 4H-pyran-4-one and 1,2,3-triazole ring, {1-[4-(4-oxo-6-phenyl-4H-pyran-2-yl)benzyl]-1,2,3-triazol-4-yl}methyl acrylate was synthesized by the reaction of 2-{4-[(4-(hydroxymethyl)-1,2,3-triazol-1-yl)methyl]phenyl}-6-phenyl-4H-pyran-4-one with acryloyl chloride in the presence of triethylamine. The structure of the acrylate monomer was established on the basis ...

Determination of Residual Methylmethacrylate Monomerin Denture Base Resins by Gas Chromatography

Acrylic base resins are widely used in orthopedics and dental surgery. It is generally accepted that due to the incomplete conversion of methyl methacrylate (MMA) monomer to the polymer form during polymerization of the resin, some MMA monomers remain in the hardened material. MMA monomer has been reported to cause abnormalities or lesions in several organs of animals. Study of the literatures ...

تعیین انتقال مونومراستایرن از ظروف پلی استایرنی شفاف به نوشیدنیهای داغ

Polystyrene plastic material is a part of important packaging materials that is widely used. In recent decades, It is excessively applied in manufacturing of disposable drinking containers. Temprature is an important factor in determination the stability styrene monomer. The migration of styrene monomer in to hot drinks may cause chronic toxic effect in nervous system, liver and other organ of ...