I am preparing chitosan film by casting chitosan solution into petri dish and let it air dry. I am using NaOH to peel off the dried film but it breaks the film. I have used different molar strengths of NaOH 0.01 to 0.1 M. But film breaks down.
You can try the water immersed methode for this particular purpose indeed.
Peeling off chitosan film from a petri dish can be challenging, and the use of NaOH to aid in the peeling process may not always be successful, as you have experienced. Here are some alternative methods that you can try:
Overall, there are several methods that you can try to peel off chitosan film without using NaOH, including using a non-stick surface, using a different alkaline solution, adjusting the drying conditions, and performing a peel test.
Md. Mahmudur Rahman water didn't work as well. It started to kind of dissolving in water
But as i know so far chitosan is insoluble in water, for your consideration.
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