poly2hydroksyetyylimetakrylaatti

Poly(2-hydroxyethyl methacrylate), often abbreviated as PHEMA, is a synthetic polymer. It is derived from the monomer 2-hydroxyethyl methacrylate. PHEMA is known for its hydrophilic properties, meaning it readily absorbs water. This characteristic makes it a crucial material in various applications, particularly in fields requiring biocompatibility and water retention.

One of the most significant uses of PHEMA is in the manufacturing of soft contact lenses. Its ability to absorb water allows the lenses to remain hydrated on the eye, providing comfort and oxygen permeability, which is essential for ocular health. Beyond contact lenses, PHEMA finds application in drug delivery systems. Its porous structure can entrap and release therapeutic agents in a controlled manner. It is also utilized in hydrogels for wound healing dressings, artificial tissues, and as a component in dental materials. The biocompatibility of PHEMA means it is generally well-tolerated by biological systems, reducing the risk of adverse immune responses. Its versatility stems from its ability to be cross-linked, which can alter its mechanical properties and water content.