Preparation, Characterization of Substituted Aromatic Heterocyclic Phosphate Salts and the Application in Isotactic Polypropylene

Abstract:

Substituted aromatic heterocyclic phosphate salts were synthesized by a new method and characterized by fourier transform infrared spectroscopy(FT-IR) and thermogravimetry (TG) method. The characteristic absorption bands ascribed to the stretching vibration of P=O group and P-O group verify the successful synthesis of substituted aromatic heterocyclic phosphate salts. When compared with sodium salt, the thermal stability of other salts declines. Their nucleation effects on isotactic polypropylene(iPP) were investigated with differential scanning calorimeter(DSC) and influences on mechanical, optical properties of iPP were also studied. The DSC result shows that with 0.15wt% nucleating agents incorporated into iPP, monovalent salts have a good performance, bivalent salts have less nucleation effect on the crystallization temperature. But the mass fraction of crystallinity of iPP with manganese salt could be increased by 5.2% even it has a weak ability relatively on crystallization temperature. And the mechanical and optical properties of iPP with manganese salt almost reach to iPP containing lithium salt. The results demonstrate that bivalent manganses salt is a kind of new effective nucleating agent when designing compound nucleating agents.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 463-469
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.463
• Online since: January 2013
• Authors: Li Juan Long, Wen Tao He, Min Min Zhang, Kai Zhang, Min He, Shu Hao Qin, Jie Yu
• Keywords: Crystallization, Isotactic Polypropylene, Nucleation Agent, Substituted Aromatic Heterocyclic Phosphate Salts, Synthesis

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