Young's modulus is a crucial mechanical property in engineering, as it defines the stiffness of a material and tells us how much it will deform for an applied stress.

PMMA, polymethyl-methacrylate, is a thermoplastic acrylic linear polymer ... as a photoresist material in the fabrication of semiconducting devices. PMMA has a Young's modulus of 2.9 GPa, UTS of 55 ...