Used primarily in the production of temperature-sensitive polymers, particularly poly(N-isopropylacrylamide) (PNIPAM). These polymers exhibit a unique property of being soluble in water at lower temperatures but become insoluble when heated above a specific threshold, known as the lower critical solution temperature (LCST). This characteristic makes it valuable in various applications such as drug delivery systems, where it can be used to create smart hydrogels that release drugs in response to temperature changes. Additionally, it is employed in tissue engineering for creating scaffolds that respond to physiological conditions. In biotechnology, it is utilized for protein purification and cell culture surfaces due to its reversible phase transition behavior. Its thermoresponsive nature also finds use in sensors and actuators, where it can convert thermal energy into mechanical motion.