本发明公开了一种PVDF-g-PVP的制备方法,其包含下述步骤:在无氧条件下,在包含NVP单体和PVDF的均相溶液中,进行NVP单体与PVDF的共辐射接枝反应,即得;所述均相溶液的溶剂为N-甲基吡咯烷酮,二甲基甲酰胺和二甲基乙酰胺中的一种或多种.本发明还公开了由该方法制得的PVDF-g-PVP.本发明采用均相溶液体系进行共辐射接枝...
PVDF-g-PVP及PVDF / PVP微滤膜的亲水性随PVP含量的增加而 增强,但二者的热稳定性与PVDF膜相比略有降低.由于PVDF / PVP微滤膜中的PVP在成 膜过程中主要作致孔剂,大部分会流失,因此与PVDF-g-PVP微滤膜相比,相同PVP含量的 铸膜液在成膜后PVDF /
实验结果表明,PVDF-g-PVP及PVDF/PVP微滤膜的亲水性随PVP含量的增加而增强,但二者的热稳定性与PVDF膜相比略有降低.由于PVDF/PVP微滤膜中的PVP在成膜过程中主要作致孔剂,大部分会流失,因此与PVDF-g-PVP微滤膜相比,相同PVP含量的铸膜液在成膜后PVDF/PVP膜中的N含量较低,膜表面孔数较多,水通量较大,但亲水性...
(porogen), was synthesizednby the surface modification of montmorillonite (MMT) withnN-vinylpyrrolidone (NVP) via "grafting from" polymerizationnin the presence of H2O2−NH3·H2O as the initiator, and thennthe nanocomposite membrane of poly(vinylidene fluoride)n(PVDF) and PVP-g-MMT was ...
本发明公开了一种PVDF-g-PVP的制备方法,其包含下述步骤:在无氧条件下,在包含NVP单体和PVDF的均相溶液中,进行NVP单体与PVDF的共辐射接枝反应,即得;所述均相溶液的溶剂为N-甲基吡咯烷酮,二甲基甲酰胺和二甲基乙酰胺中的一种或多种.本发明还公开了由该方法制得的PVDF-g-PVP.本发明采用均相溶液体系进行共辐射接枝...
PVDFNano‐TiO2ATRPAnti foulingNVPGraft polymerizationHydrophilicityPhase inversionIn this paper, the effect of poly (vinylidene fluoride) (PVDF)ゞ﹑olyvinylpyrrolidone (PVP) and nano㏕iO2, as organic and inorganic additives, respectively, on antifouling properties of PVDF nanofiltration membranes was ...
The invention also discloses the PVDF-g-PVP prepared by the method. According to the invention, co-radiation grafting is carried out in the homogeneous phase solution system, so that the NVP can be more evenly grafted onto the PVDF, and grafting chains are more evenly distributed on PVDF ...
, acta, PVdF-PVP EDLC Membrane electrode assemblies (MEAs) of covalently cross-linked sulfonated poly(ether ether ketone) (CL-SPEEK)/heteropolyacids (HPAs) composite polymer with platinum-based alloys such as Pt–Ru–Co and Pt–Ru–Ni were prepared and their ......
PVDF-g-PVP@GO modified membrane was prepared through a non-solvent induced phase separation method (NIPS) by homogeneous solution co-irradiation and blending with graphene oxide (GO). Fourier transform infrared spectroscopy (FTIR) of different membranes confirmed the stable loading of GO on the ...
Preparation of PVDF porous membranes by using PVDF- g -PVP powder as an additive and their antifouling property[J] . Chenqi Xu,Wei Huang,Xin Lu,Deyue Yan,Shutao Chen,Hua Huang.Radiation Physics and Chemistry . 2012 (11)Xu C Q, Huang W, Lu X, et al. Preparation of PVDF porous ...