Crystalline polymorphism in poly(vinylidenefluoride) membranes. (December 2015)

• Record Type: Journal Article
• Authors: Cui, Zhaoliang; Hassankiadeh, Naser Tavajohi; Zhuang, Yongbing; Drioli, Enrico; Lee, Young Moo
• Is Part Of: Progress in polymer science. Volume 51(2015:Dec.)
• Page Start: 94
• Page End: 126
• Publication Date: 2015-12
• Subjects: ATBC acetyl tributyl citrate -- ATR attenuated total reflection -- CFE chlorofluoroethylene -- CNFs carbon nanofibers -- CNTs carbon nanotubes -- CO cyclohexanone -- CTAB cetyltrimethlammonium bromide -- DBP dibutyl phthalate -- DEP diethyl phthalate -- DFT density functional theory -- DMAc dimethyl acetamide -- DMF dimethyl formamide -- DMP dimethyl phthalate -- DMSO dimethyl sulfoxide -- DOP dioctyl phthalate -- DPK diphenyl ketone -- DSC differential scanning calorimetry -- EC ethylene carbonate -- FTIR Fourier transform infrared spectroscopy -- FT-Raman Fourier transform Raman -- GO graphene oxide -- IL ionic liquid -- IR infrared radiation -- LB Langmuir–Blodgett -- MD membrane distillation -- MEK methyl ethyl ketone -- MF microfiltration -- MMT montmorillonite -- MWNTs multi-walled carbon nanotubes -- NIPS non-solvent induced phase separation -- NMR nuclear magnetic resonance -- OMS organically modified silicate -- PAS photoacoustic spectroscopy -- PEG poly(ethylene glycol) -- PGC propylene glycol carbonate -- PMMA poly(methyl methacrylate) -- POM polarizing optical microscopy -- POMA poly(o-methoxyaniline) -- PV pervaporation -- PVA poly(vinyl acetate) -- PVDF poly(vinylidene fluoride) -- P(VDF-co-CTFE) poly(vinylidene fluoride-co-chlorotrifluoroethylene) -- P(VDF-co-HFP) poly(vinylidene fluoride-co-hexafluoropropene) -- P(VDF-co-TFE) poly(vinylidene fluoride-co-tetrafluoroethylene) -- P(VDF-TrFE) poly(vinylidene fluoride-trifluoroethylene) -- PVP polyvinylpyrrolidone -- γ-BL γ-butyrolactone -- SAN poly(styrene-co-acrylonitrile) -- SDS sodium dodecyl sulfate -- SEM scanning electron microscope -- SHI swift heavy ions -- TBAC tetrabutylammonium chloride -- TCPS tissue culture polystyrene plate -- TGTG′ trans-gauche-trans-gauche′ -- THF tetrahydrofuran -- TIPS thermally induced phase separation -- TTT trans-trans-trans -- TTTGTTTG′ trans-trans-trans-gauche-trans-trans-trans-gauche′ -- UF ultrafiltration -- VIPS vapor induced phase separation -- WAXD wide-angle X-ray diffraction -- XRD X-ray diffraction; PVDF -- Polymorphism -- Membranes -- Crystallization; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Industrial applications -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.progpolymsci.2015.07.007
• Languages: English
• ISSNs: 0079-6700

Abstract

Abstract: PVDF is widely employed in membrane processes. Its crystals have five different polymorphs, α, β, γ, δ, and ɛ forms. In the past decades, research has been focused on the properties and performances of PVDF membranes. However, the formation mechanisms of the various polymorphs and their different effects on membrane performance are still not clear. Therefore, overall clarification of, conclusions about, and outlook on the effects of PVDF polymorphism on membrane properties and performance are important topics for further research. This manuscript systematically summarizes the structures and properties of PVDF crystals with different polymorphs, discusses the mechanisms of formation and transformation methods, reviews the crystallization and applications of different PVDF polymorphs in membrane separation, and presents the outlook for applications in membrane operations.