Polydimethylsiloxane (PDMS) is a type of silicone polymer that is used in a variety of applications. It is a clear, colorless, and odorless liquid with a wide range of properties, such as low toxicity and high heat resistance. One of the most important properties of PDMS is its ability to terminate in OH groups, which gives it the ability to interact with other molecules and materials. In this blog post, we will explore what OH-terminated polydimethylsiloxane is and how it is used.
What is OH-terminated polydimethylsiloxane?
OH-terminated polydimethylsiloxane is a water repellent and oil resistant silicone polymer. It is used in a variety of applications where water repellency and oil resistance are desired. OH-terminated polydimethylsiloxane is available in a variety of formulations, each designed for specific end uses.
Properties of OH-terminated polydimethylsiloxane
OH-terminated polydimethylsiloxane (OH-PDMS) is a type of PDMS with hydroxyl groups (-OH) attached to the silicon atoms in the polymer chain. This gives the material some unique properties compared to other PDMS formulations.
OH-PDMS is more hydrophilic than regular PDMS, meaning it is more attracted to water molecules. This makes it ideal for use in applications where water needs to be repelled, such as in waterproof coatings. OH-PDMS also has a higher surface energy, making it easier to wet surfaces and form strong bonds with them.
In addition, OH-PDMS is more resistant to degradation from UV light and oxygen than regular PDMS. This makes it a good choice for outdoor applications or any situation where the material will be exposed to harsh conditions.