分别采用热重分析、熔体流动速率和氧化开始温度等分析方法考察了其在聚丙烯（PP）中的稳定化作用。
Thermogravimetric analysis(TG), melt flow rate, and oxidation onset temperature(OOT) were employed to characterize the stability of PP containing the antioxidants.
锂离子的静电作用和极化作用，使锰氧之间的离子键成分减小，共价键成分增加，整个尖晶石骨架结构更加稳定。
The electrovalent bond weakens and the covalent bond strengthen between manganese and oxygen due to ion polarization effect, which makes the spinel structure more stable.
发现二氧化钛不仅对共缩聚反应具有良好的催化作用，且对提高共聚物的热稳定性亦有贡献。
It was found that titanium dioxide possesses not only good catalytic action, but also improves the thermal stability of the resulted copolymer.
应用推荐