By determining the molecular weight of a polymer such as polystyrene, the function and maximum capacity of the polymer can be deduced, which has significant implications for recycling and reusing discarded polystyrene waste. Determining a polymer's molecular weight is crucial in utilizing the polymer and its properties, such as viscosity, melting point, and plastic chemical resistance. For example, knowing the molecular weight of polystyrene enables calculating the approximate length of the polymer chains, which relates to numerous properties. Polymers with a higher molecular weight have longer polymer chains, increasing their viscosity and chemical resistance due to their ability to absorb more energy.