Exploring the physical properties of polyhydroxybutyrate via eccentricity-based topological indices

The biopolymers known as polyhydroxyalkanoates (PHA’s) are composed of a variety of microorganisms that are responsible for their preparation and composition. These naturally occurring polymers possess certain physical characteristics that are identical to those of plastics derived from petroleum, such as polypropylene. Based on this information, it can be deduced that these natural polymers possess the capability of functioning as an alternative to plastics that are generated from petroleum. Polyhydroxybutyrate (PHB), polyhydroxyvalerate, and their copolymer (PHBV) are the PHA’s that are found in the greatest abundance in a variety of microorganisms from across the world. In this research, we have made a chemical structure model of PHB and determined its eccentricity tables and also calculated eccentricity-based TI’s. For PHB, the computation of eccentricity-based TI’s provides important information about its structural characteristics and possible uses. Additionally, the application of TI’s may improve polymer performance prediction models, directing the future development of more sustainable and effective materials.