pH-sensitive Itaconic acid based polymeric hydrogels for dye removal applications.

Area of Science:

• Polymer Chemistry
• Materials Science
• Environmental Science

Background:

• pH-sensitive hydrogels are crucial for targeted applications.
• Itaconic Acid (IA) offers a versatile platform for novel polymer synthesis.
• Developing efficient dye removal solutions is vital for environmental protection.

Purpose of the Study:

• To synthesize novel Itaconic Acid (IA)-based pH-sensitive polymeric hydrogels.
• To investigate the structural, morphological, and thermal properties of the synthesized hydrogels.
• To evaluate the hydrogels' efficacy in removing cationic dyes from aqueous solutions.

Main Methods:

• Condensation polymerization of Itaconic Acid (IA) with Ethylene Glycol (EG) to form a pre-polymer.
• Free radical co-polymerization of the pre-polymer with Acrylic Acid (AA) using Potassium Persulphate (KPS).
• Characterization using FT-IR, Scanning Electron Microscope (SEM), TGA, DTA, and DSC. Swelling studies conducted at various pH levels (4.0-10.0).

Main Results:

• Successful synthesis of IA-based pH-sensitive hydrogels confirmed by FT-IR and SEM.
• Hydrogels exhibited significant swelling behavior influenced by pH and composition (IA, EG, AA).
• Demonstrated excellent dye removal capacity, particularly for Methylene Blue, a model cationic dye.

Conclusions:

• The synthesized Itaconic Acid-based hydrogels possess desirable pH-sensitive properties and high dye uptake capabilities.
• These hydrogels show significant potential for eco-friendly environmental applications, including dye and metal ion removal from wastewater.
• Further research into these IA-based hydrogels could lead to advanced solutions for water purification and sewage treatment.