Fluorinated triblock terpolymers PIB-b-PDMAEMA-b-POFPMA was synthesized by oxyanion-initiated polymerization and characterized by 1H-NMR and GPC.The physicochemical and film properties were studied in detail.Firstly

the thermal decomposition behavior and glass transition temperature (Tg) were studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC)

respectively.These results showed that PIB60-b-PDMAEMA63 have one transition temperature at -4 ℃ due to the compatibility of PIB and PDMAEMA segments

and the triblock terpolymer PIB60-b-PDMAEMA63-b-POFPMA11 have an additional Tg at 26 ℃ which corresponded to the glass transition temperature of POFPMA.Subsequently

the polymeric thin films were prepared by casting polymer/THF solutions on glass slides or PTFE panel substrates.It was found that the triblock terpolymers have a certain hydrophobic and oleophobic properties by contact angle test.The surface free energy

dispersion and polar components were calculated according to Owens-Wendt formulas.The results of AFM

SEM and XPS showed the migration of fluoride part to the surface and accumulation after annealing to minimize interfacial free energy.Ordered structure of fluorinated chains on the surface was studied by XRD.The results of XRD showed that the fluorinated chains would be rearranged to transform into a double-layer packing after annealing.