I have use some organic solvents like chloroform, toluene but doesn't work.
Febin Cherian John
Oxygen plasma treatment: Oxygen plasma treatment can be used to remove PDMS from a glass substrate. The plasma treatment oxidizes the PDMS layer, breaking down the chemical bonds and making it easier to remove. This method is effective, but may require specialized equipment. Solvent mixture: A mixture of solvents can be used to dissolve PDMS from a glass substrate. Try mixing a small amount of acetone with tetrahydrofuran (THF) or dimethyl sulfoxide (DMSO). The PDMS layer will gradually dissolve when immersed in this mixture. However, this method may take some time and may not work for thick PDMS layers. Hot alkaline solution: A hot alkaline solution can be used to remove PDMS from a glass substrate. Immerse the substrate in a solution of potassium hydroxide (KOH) or sodium hydroxide (NaOH) in water at a temperature of around 80-90°C. The PDMS layer will gradually dissolve over time. However, this method should be used with caution as it can damage the glass substrate if the conditions are not carefully controlled. Mechanical peeling: In some cases, a PDMS layer can be peeled off from a glass substrate using a mechanical method. Use a sharp blade or a scraper to gently peel off the PDMS layer from the glass. This method may not be suitable for thick PDMS layers.
PDMS (polydimethylsiloxane) is known for its low surface energy and excellent release properties, which makes it difficult to dissolve from surfaces. However, there are some methods that can be used to dissolve PDMS from a glass substrate without damaging the glass.
It is important to note that these methods may not work for all types of PDMS layers and substrates. It is recommended to test the method on a small area before applying it to the entire substrate. Additionally, proper safety measures, such as wearing protective gloves and using a fume hood, should be taken when handling solvents and chemicals.
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