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Fluorinated poly(ethylene oxide) propyl-b-polydimethylsiloxane-b-propyl fluorinated poly(ethylene oxide)(FPEO-b-PDMS-b-FPEO) was synthesized by a free radical addition of carbon-hydrogen of polyether segments of poly(ethylene oxide) propyl-b-polydimethylsiloxane -b-propyl poly(ethylene oxide)(PEO-b-PDMS-b-PEO) to hexafluoropropylene(HFP) using tert-butyl peroxypivalate as an initiator.In order to reduce the possibility of side reaction,the protection and deprotection via silylation were used for the end-hydroxyls in PEO-b-PDMS-b-PEO chain.The structure of Intermediates and FPEO-b-PDMS-b-FPEO was confirmed by means of Fourier transform infrared and ~1H NMR spectroscopy.The effects of amount of initiator,reaction temperature and time on free radical addition were investigated in detail.
Fluorinated poly (ethylene oxide) propyl-b-polydimethylsiloxane-b-propyl fluorinated poly (ethylene oxide) (FPEO-b-PDMS-b-FPEO) was synthesized by a free radical addition of carbon- hydrogen of polyether segments of poly oxide) (PEG-b-PDMS-b-PEO) to hexafluoropropylene (HFP) using tert-butyl peroxypivalate as an initiator. Order to reduce the possibility of side reaction , the protection and deprotection via silylation were used for the end-hydroxyls in PEO-b-PDMS-b-PEO chain. The structure of Intermediates and FPEO-b-PDMS-b-FPEO was confirmed by Fourier transform infrared and ~ 1H NMR spectroscopy. These effects of amount of initiator, reaction temperature and time on free radical addition were investigated in detail.