Deng et al. [5] has prepared Ag/PMMA nanocomposites by using PMMA and DMF via in-situ

technique. They observed that the behavior of linear and nonlinear optical properties were different compared to the pure PMMA film. The main problem in polymer nanocomposites is to avoid the particles from aggregation. However, this problem can be solved by surface modification of the particles. This will improve the interfacial interaction between the metal particles and the polymer matrix. In this paper, we used GW572016 a simple procedure for the preparation of Ag/PMMA nanocomposites. In the first step, Ag nanoparticles were synthesized in water using the chemical reduction method [6–8]. This technique offers a systematic, efficient, and simple procedure for synthesis of Ag

YAP-TEAD Inhibitor 1 nanoparticles without decreasing the Idasanutlin nmr production rate. In the second step, Ag nanoparticles were mechanically mixed with PMMA dissolved in DMF to form nanocomposites at different temperatures. The temperature-dependent properties of nanocomposites were investigated by various techniques and their preparations of nanocomposites were discussed. Methods Silver nitrate, AgNO3 (Thermo Fisher Scientific, Waltham, MA, USA) was selected as source of silver. Polyethylene glycol (PEG, MW 8000 in monomer units; Acros organics, Morris Plains, NJ, USA) was used as reducing agent. Daxad 19 (sodium salt of polynaphthalene sulfonate formaldehyde condensate, MW 8000; Canamara United Supply Company, Edmonton, AB, Canada) was used as stabilizer. N′N-dimethylformamide (DMF) (R & M Marketing, Essex, UK) used as solvent while PMMA (Acros Organics) as matrix. Four grams of AgNO3 was dissolved and stirred for 1 h in a mixture comprising of 100 mL distilled water, 4.5 g of PEG, and 5 g of Daxad 19 at 80°C. It was observed that the light brown solution transformed into a grey-black color, which indicates the formation of silver nanoparticles. The solution was then centrifuged at a maximum speed of 15,000 rpm, and washed with distilled water for several times [9]. Then, 10 g of PMMA was dissolved in 50 mL of DMF and mixed with 5 mL of silver nanoparticle

solution at 80°C. The mixture was stirred for 1 h. This procedure was then repeated at 100°C and 120°C [10]. The physical shape and size of Ag/PMMA nanocomposites were observed by transmission electron DOK2 microscopy (TEM; Leo Libra). The absorption spectrum was recorded by UV–VIS spectrophotometry (Cary Win UV 50, Agilent Technologies, Melbourne, Australia). The surface structure was characterized using Raman spectroscopy (Raman XploRA, Horiba, Kyoto, Japan) and Philips X’Pert MPD PW3040 X-ray diffraction (XRD; Amsterdam, The Netherlands) with CuKα radiation at 1.5406 Å. The zeta potential of Ag/PMMA nanocomposites was measured by Zetasizer (Zetasizer 3000HS, Malvern, Inc., Malvern, UK) while for thermogravimetry, TGA/SDTA 851 Mettler Toledo was used to measure the thermal properties.