Visualization of Film Formation Process of Copolyesteramide Containing Phthalazine Moieties During Interfacial...

Area of Science:

• Polymer Chemistry
• Materials Science
• Membrane Technology

Background:

• Interfacial polymerization (IP) is crucial for composite membrane synthesis.
• Precise control over IP remains challenging due to process complexity.

Purpose of the Study:

• To directly observe and understand the interfacial polymerization (IP) process.
• To investigate factors influencing film growth and morphology during IP.
• To enhance composite membrane preparation methodologies.

Main Methods:

• Utilized an optical three-dimensional microscope for direct IP observation.
• Synthesized copolyesteramide films using specific rigid (DHPZ) and flexible (PIP) monomers with trimesoyl chloride (TMC).
• Investigated effects of monomer ratios, co-solvents, and phase transfer catalysts.

Main Results:

• Observed multilayer cellular structures during copolyesteramide film formation via IP.
• Identified key factors influencing film growth dynamics and resulting morphologies.
• Provided insights into polymer film formation principles.

Conclusions:

• Direct observation enhances understanding of complex IP processes.
• Control over monomer ratios and additives can regulate film morphology.
• Findings support improved composite membrane fabrication techniques.