hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose (HPMC) is a semi-synthetic cellulose ether derived from plant cellulose through chemical modification, classified as a water-soluble polymer with tunable rheological properties. It is widely used in pharmaceuticals as a binder, thickener, and controlled-release agent in tablets and capsules, and in construction as a water-retention and workability enhancer in cement-based products; engineers select HPMC over alternatives because it offers temperature-dependent gelation, excellent film-forming ability, and compatibility with both aqueous and some organic systems, making it versatile across formulation-sensitive applications.