Silver rubber-hydrogel nanocomposite as pH-sensitive prepared by gamma radiation: Part I

Abstract

Silver rubber-hydrogel nanocomposite based on silver/styrene butadiene rubber/polyvinylpyrrolidone/methacrylic acid (SBR/PVP/MAA)/Ag was prepared by gamma radiation-induced crosslinking. During the radiation crosslinking of SBR/PVP/MAA solution containing silver nitrate AgNO₃ (0.01 mol), in situ reduction of Ag⁺ ions was performed under the radiolysis of water. The properties of sliver rubber-hydrogel nanocomposite were investigated by FT-IR, XRD, TEM, SEM, DSC and TGA techniques. Transmission electron microscope (TEM) reveals that AgNPs have uniform distribution and spherical shape with mean diameter in the range of 8–10 nm. Differential scanning calorimetry (DSC) results of the nanocomposite showed one phase suggesting the miscibility between rubber and hydrogel phases. The swelling measurement of the synthesized silver rubber-hydrogel nanocomposite in different pHs at room temperature was performed. The results showed that it has pH-sensitivity.

Keywords:

• rubber
• hydrogel
• nanocomposite
• AgNPs
• gamma irradiation
• pH-sensitive

Public interest statement

•	Uses of radiation technology for prepare sliver rubber-hydrogel (styrene butadiene rubber/poly vinyl pyrrolidone/poly methacrylic acid)/silver nanocomposites.
•	In situ reduction of Ag+ ions was performed under the radiolysis of water.
•	The swelling behavior of (SBR/PVP/PMAA)/Ag nanocomposites as a function of pH at room temperature was performed.
•	Ag nanoparticles were in the range of 8–10 nm.

Additional information

Notes on contributors

Mohamed Mohamady Ghobashy

Specialist: 1-nanotechnology applications 2- specific interest, Ionic Polymer Metal Composite (IPMC), as electroactive polymer (EAP) and magnetic polymer. 3-application of radiation chemistry for synthesis of polymer and hydrogel with a wide range biomedical application. Another kind of polymeric matrials likes (Organogel, fabric polymer and grafted films for different applications like self cleaning and self healing hydrogel.