Abstract
An amphiphilic copolymer (PVDF-g-PNIPAAm) with poly (vinylidene fluoride) (PVDF) main chains and poly (N-isopropylacrylamide) (PNIPAAm) side chains was synthesized by free-radical polymerization, and flat sheet copolymer membranes were prepared via the phase inversion method with N,N-dimethylformamide (DMF) as the solvent and DMF/water as the coagulation bath. The influence of the coagulation bath composition on the structure and properties of PVDF-g-PNIPAAm membrane was studied. The structure and performance of membranes were characterized by X-ray photoelectron spectroscopy, scanning electron microscopy, contact angle test, and filtration experiment. The results showed that the coagulation bath composition could affect the resulting membrane properties including pore structure, hydrophilicity, permeability, and temperature sensitivity. The PVDF-g-PNIPAAm membrane prepared in 5 wt% DMF coagulation bath exhibited higher water flux and obvious temperature sensitivity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
