Study of irradiation effect on poly(vinylidene fluoride-trifluoroethylene) copolymers

Li, Weiping; Zhu, Yuejin; Li-min, Jiang; Wang, Peiqing; Wang, Jun

doi:10.1007/s10853-007-1570-5

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…Effect of ionizing radiation onto hydrocarbon polymer usually is focused on C-H, C-C and C-F bonds of studying molecular bonding structure and functional group analysis [48,49]. In general, fluoropolymers backbone such as PVDF is formed of carbon-carbon (C-C) bonds and carbon-fluorine (C-F) bonds which are crystalline plastics and are powerful bonds with energy for one molecule 607 kJ.mol -1 and 552 kJ.mol -1 respectively [50].…”

Section: Ftir Spectrum Of the Pvdf 1-vinylimidazole And Pvdf-g-p1vimmentioning

confidence: 99%

The Effect of Absorbed Dose and Chemical Composition On the Ionic Conductivity of 1-Vinylimidazole-Grafted PVDF Membranes Made Via Y-Ray Induced Grafting

Lepit,

Mustaffa,

Jaafar

et al. 2023

ijmst

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The effect of ?-ray on the copolymerization of 1-Vinylimidazole (VIm) onto polyvinyl fluoride (PVDF) is dependent on the absorbed dose, various solvents, and Iron concentration (II). Using radiation-induced grafting techniques, develop an alternative proton-exchange membrane (PEM) based on PVDF as the primary polymer and VIm as the monomer. Gravimetric analysis, FTIR, and conductivity investigation were utilized to characterize the physico-chemical properties of the grafting membrane. PEM, also known as PVDF-g-P1VIm, was synthesized and functionalized by sulfuric acid doping. The proportion of dose absorbed, the degree of grafting (DG), the ion exchange capacity (IEC), and water uptake (WU) all correlate with the membrane grafting performance. The C-H bonds exhibited decreased intensity and the peak location moved considerably in FTIR, indicating PVDF-VIm grafting. DG and IEC influence the ionic conductivity of the grafting PEM. The grafted membranes proved to have humidity dependent on proton conductivity with a range of 0.136 mScm-1 (room temperature) and 3.02 mScm-1 (373 K) containing IEC levels of 0.065 and 0.107 meq./g, respectively. PVDF-g-P1VIm membranes exhibit potential in the field of PEM membranes for use in hydrogen fuel cells or water treatment.

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Section: Ftir Spectrum Of the Pvdf 1-vinylimidazole And Pvdf-g-p1vimmentioning

confidence: 99%