Poly(butylene-succinate) (PBS) was examined as a promising biodegradable and reprocessable material used for material recycling. The mechanical properties of PBS after immersed in water were investigated and it was found that the bending strength of PBS decreased as the immersion time and the immersion temperature increased due to the chemical degradation of PBS caused by hydrolysis. The chemicallydegraded PBS was then reprocessed and re-examined to investigate the mechanical properties.