Sodium 2

2'-methylene-bis(4-6-di-t-butylphenyl) phosphate (NA-1) and sodium 2

2'-methylene-bis(4-t-butylphenyl) phosphate (NA-2) were synthesized from 2

4-di-t-butyl phenol.The differences of nucleated effectiveness which the ortho-substituted groups of aromatic heterocyclic phosphate salts resulted in were studied.The structures of molecule

condensed state

character of surface and thermal parameters were characterized by Fourier transform infrared spectrometry (FTIR)

nuclear magnetic resonance (NMR)

X-ray diffraction (XRD) and scanning electronic microscopy (SEM)

thermo gravimetric analysis (TGA) and differential scanning calorimetry (DSC).The structure of crystal

crystallization behavior and optical properties of the NA-1/iPP and NA-2/iPP composites were analyzed by polarizing optical microscopy (POM)

analysis of the fractured surface

DSC

photo electricity opacimetry (PEOM).The results showed that NA-1 could induce iPP's spheruletes finer

peak temperature of crystallization (Tcp) higher 5.1 ℃

haze lower 7.4% and transmittance higher 4.3% than NA-2 when the content of two kinds of nucleates in iPP is 0.2%.The results of fractured surface SEM analysis of iPP and nucleated iPP composites showed that the uniformity of NA-1 and NA-2 in the base material was fine and their mean particle sizes were 0.79 m and 0.82 m.Their curves of Frequency distributions by particle size were similar.The differences of uniformity and distributions were indistinctive

so the Effects of nucleating effectiveness of Aromatic Heterocyclic Phosphate Salts were induced by the ortho-substituted groups of molecular structures.