Abstract: Using in situ polymerization, the monomer acrylonitrile (AN) was intercalated and polymerized with benzoyl peroxide (BPO) as the initiator between the layer of layered double hydroxide (LDH). The structure of Polyacrylonitrile/layered double hydroxide (PAN/LDH) was characterized by Fourier transformed infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). Both the flame retardant property and heat resistant were investigated. The results showed that PAN has been prepared between the layer of LDH by in situ polymerization and the interlay spacing of LDH has been expanded. The LOI of the blend was enhanced from 18% to 21%, which revealed that the flame retardant property has been improved. In addition, the heat resistant has been improved.

Key words: polyacrylonitrile%layered double hydroxide%blending%in situ polymerization