PNIPAM

PNIPAM (poly(N-isopropylacrylamide)) is a synthetic polymer known for its temperature-responsive behavior, exhibiting a sharp transition in solubility and physical properties around its lower critical solution temperature (LCST). Although primarily a research material rather than a commodity engineering polymer, PNIPAM has demonstrated utility in biomedical and pharmaceutical applications where controlled release, reversible gelation, and stimulus-triggered actuation are required. Its ability to change properties dramatically in response to small temperature shifts makes it valuable in developing smart coatings, drug delivery systems, and tissue engineering scaffolds where conventional polymers fall short.