ABSTRACT Due to rapid growth in global warming issues, researchers are focusing on alternative materials which will be replacing existing nonbiodegradable. This research article aims to study the mechanical and dynamic mechanical analysis of Polyvinylalcohol (PVA) crosslinked Glutaraldehyde (GA) polymer. The PVA-GA polymers are processed by using conventional compression moulding techniques by several volume fractions (Vf) from 5 to 40. The prepared PVA-GA polymer dipped in Sulphuric acid solution for 24 hours for better crosslinking. The result reveals that mechanical properties enhanced by adding up to 20 Vf GA in PVA, the tensile strength is maximum for 20 Vf GA in PVA, but flexural strength is maximum for 25 Vf GA in PVA. Further, thermo-mechanical properties are analysed from 20 to 140 °C at logarithmic frequency from 0.1 to 46 Hz for various boundary conditions like a dual cantilever, single cantilever, and three-point bending. The Time–Temperature Superposition (TTS) diagrams are plotted for various boundary conditions; additionally, storage modulus frequency plots are constructed by horizontal shifting called master curves.