Effect of dihydrazide compounds with different side-chain substituents on the crystallization behavior and mechanical properties of isotactic polypropylene
National Key R&D Program of China; Hunan Provincial Science & Technology Department [2021GK5007]; [2022YFB2602605]
机构署名：
本校为第一且通讯机构
院系归属：
化学与生物工程学院
摘要：
A series of dihydrazide compounds were synthesized and evaluated as nucleating agents (NAs) for isotactic polypropylene (iPP). The crystallization behavior of iPP was studied using differential scanning calorimetry (DSC) to investigate the influence of dihydrazide compounds featuring streptane and cycloalkane substituents with varying carbon chain lengths. The mechanical properties of iPP nucleated by highly efficient NAs were characterized. Internal crystallization was observed using polarized optical microscopy (POM). DSC results demonstrated that all synthesized compounds exhibited strong a...
