PBS基共聚物的降解性及其对冬小麦生长影响的研究

为了研究聚丁二酸丁二醇酯（PBS）基共聚物的降解性能及其对冬小麦生长的影响，笔者将冬小麦分别播种在混有等量PBS，改性共聚物聚丁二酸丁二醇酯/丁二酸己二醇酯（PBS-co-HS），聚丁二酸丁二醇酯/己二酸丁二醇酯（PBS-co-BA）的聚合物碎片的土壤中，研究聚合物在土壤中的降解，及其持续降解过程中的降解中间体、降解产物对冬小麦种子发芽及生长的影响。结果表明，在相同条件下的陕西塿土中，共聚物比PBS显示出更好的生物降解性能；聚合物处理对冬小麦的发芽率、株高没有影响，但有利于植株生物量的提高。因此，可生物降解材料PBS、PBS-co-HS和PBS-co-BA的降解及其降解产物对目前土壤环境中植物的生长暂时没有影响。

Degradation of PBS-Based Copolymers and Impact on the Growth of Winter Wheat

In order to study the degradation of PBS-based copolymer and impact on the growth of winter wheat,seeds of winter wheat were sowed and cultivated in a soil blended with polymers,such as PBS,poly (butylene succinate)-co-(hexane succinate) (PBS-co-HS) and poly (butylene succinate)-co-(butylene adipate) (PBS-co-BA).The degradation of polymers,the impact of the degradation intermediates and degradation products of polymers on the winter wheat seed germination and the growth had been investigated.The results sho...