The biodegradation process of PBS from synthetic raw materials,oligomer and degradation products was studied, the effect on the seed germination, plant growth and physical and chemical properties of the environment was investigated, and the impact on the environment of PBS was evaluated emphatically during the biodegradation process. The results showed that when the concentration of butanedioic acid was higher than 500 mg/L, the seeds growth was restrained; the seedlings was restrained by the oligomer of PBS at the initial degradation. During the degradation process in 40 d, it showed the degradability in some degree. The experiment provides that Shaanxi local soil can be screened and planted microorganism for degrading PBS.%从聚丁二酸丁二醇酯(PBS)的合成原料、低聚物及降解产物等方面探讨了PBS在生物降解过程中对种子发芽、植物的生长和环境理化性状的影响,旨在评价PBS在生物降解过程中对环境的影响.结果表明,当丁二酸浓度高于500 mg/L时,抑制种子的生长;PBS低聚物降解初期的产物,抑制植物幼苗的生长;在40 d的降解过程中,PBS显示了一定的降解性,并为能在陕西当地土壤中筛选、培养出降解PBS的微生物提供了依据.
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