A poly(p-phenylene terephthalamide)(PPTA)/MgAl layered double hydroxides(MgAl-LDH) exfoliation nanocomposite was synthesized by in situ polymerization of p-phenylenediamine with terephthalate-pillared hydroxides, Mg-4...A poly(p-phenylene terephthalamide)(PPTA)/MgAl layered double hydroxides(MgAl-LDH) exfoliation nanocomposite was synthesized by in situ polymerization of p-phenylenediamine with terephthalate-pillared hydroxides, Mg-4Al-2(OH)-{12}. The samples thereby obtained were characterized by X-ray diffraction, transmission electron microscopy image and thermal analysis. The results show that the layers of terephthalate-pillared hydroxides are exfoliated and dispersed disorderly in the PPTA matrix, the crystallinity of nanocomposite was improved compared with the original {PPTA}. Thermogravimetric analysis indicates that the thermal stability of PPTA/MgAl-LDH decrease to a certain degree.展开更多
文摘A poly(p-phenylene terephthalamide)(PPTA)/MgAl layered double hydroxides(MgAl-LDH) exfoliation nanocomposite was synthesized by in situ polymerization of p-phenylenediamine with terephthalate-pillared hydroxides, Mg-4Al-2(OH)-{12}. The samples thereby obtained were characterized by X-ray diffraction, transmission electron microscopy image and thermal analysis. The results show that the layers of terephthalate-pillared hydroxides are exfoliated and dispersed disorderly in the PPTA matrix, the crystallinity of nanocomposite was improved compared with the original {PPTA}. Thermogravimetric analysis indicates that the thermal stability of PPTA/MgAl-LDH decrease to a certain degree.
