Electron Beam Synthesis and Characterization of Acrylamide/Acrylic Acid Hydrogels Using Trimethylolpropane Trimethacrylate as Cross-Linker

Table 1

Thematerials used for the preparation of the hydrogels.

Materials	Chemical; characteristics	Chemical structure
Acrylamide (AMD)	(i) Molecular weight: 71.08 g/mol; (ii) Density: 1.13 g/cm^3; (iii) Melting point: 84.5°C; (iv) Solubility in water: 2.04 kg/L at 25°C
Acrylic acid (AA)	(i) Molecular weight: 72.06 g/mol; (ii) Density: 1.051 g/cm^3; (iii) Melting point: 14°C; (iv) Boiling point: 141°C; (v) Solubility in water: miscible
Potassium persulfate (PP)	(i) Molecular weight: 270.322 g/mol; (ii) Density: 2.477 g/cm^3; (iii) Melting point: 14°C; (iv) Boiling point: 141°C; (v) Solubility in water: 1.75 g/100 mL at 0°C	K2S2O8
Trimethylolpropane trimethacrylate (TMPT)	(i) Molecular weight: 338.4 g/mol; (ii) Boiling point: >200°C; (iii) Density: 1.06 g/cm^3; (iv) 75 3% active ingredient