摘要
对比研究了聚丙撑碳酸酯(PPC)和马来酸酐封端的聚丙撑碳酸酯(MA-PPC)的热稳定性和动态力学性能。结果表明,MA-PPC的热稳定性提高,其力学性能也得到提高。MA-PPC的分子运动没有PPC那样对温度十分敏感,表现得比较稳定。封端不仅能增加了MA-PPC的热稳定性,加强了分子间的相互作用,而且导致了其粘弹性和分子运动特性发生变化。
In this research work,two specimens used in tests are obtained from Changchun Institute of Applied Chemistry CAS.They are PPC (polypropylene carbonate) and MA-PPC (maleic anhydride end-blocked polypropylene carbonate).The heat stability and kinetic properties of PPC and MA-PPC are studied and contrasted.Results show that the heat stability and kinetic properties of MA-PPC are all improved.Molecule movement of MA-PPC is less sensitive than that of PPC and MA-PPC is more stable.Blocking agent not only increases the heat stability and reinforces the reciprocity of molecules of MA-PPC but also induces the changes of viscosity and elasticity and molecule movement characteristics.
出处
《化学与粘合》
CAS
2004年第5期247-250,共4页
Chemistry and Adhesion
