Thermal degradation of polystyrene was investigated with thermogravimetry-mass spectrum analysis (TG-MS).
采用热重质谱法研究了聚苯乙烯的热降解过程。
2
The results show that in degradation, the solubility of products in water increases with the reduction of molecular mass.
结果表明，随着辐射剂量增加，数均相对分子质量的不断减小，产物在水中的溶解度不断增大。
3
In essence, the maintenance of skeletal muscle mass is the result of the dynamic balance between muscle protein synthesis and muscle protein degradation.