Furthermore, the structure analysis of various products during raction processes was also presented here. 考察了反应条件对催化结果的影响，并对反应过程中的各产物结构进行了分析，探讨了各产物生成的可能的机理。
When higher reaction temperature and longer raction time is provided, the melting point and crystallinity of resultant PLGA will decrease due to oxidation and depolymerization. 而当温度更高或反应时间更长时，由于氧化及热降解的发生，致使结晶度及熔点转而下降。
