Preparation of ion exchange membranes by radiation grafting of acrylic acid on FEP films

Gupta, Bhuvanesh; Muzyyan, N.; Saxena, Shalini; Grover, Navdeep; Alam, Sarwar M.

doi:10.1016/j.radphyschem.2007.03.007

Cited by 27 publications

(11 citation statements)

References 21 publications

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“…2). 4, 17 The formation of anhydride is also confirmed by ATR‐FTIR spectra in Figures 3 and 4. The hydrogen bonding peak around 3300–3600 and 3385 cm −1 in PAA and 21% grafted fabric respectively, disappears after thermal treatment by TGA upto 350°C.…”

Section: Resultsmentioning

confidence: 56%

Characterization of acrylic acid grafted poly(ethylene terephthalate) fabric

Grover¹,

Singh²,

Gupta³

2010

J of Applied Polymer Sci

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The preirradiation grafting of acrylic acid (AA) onto poly(ethylene terephthalate) (PET) had been found to affect the thermal and physical characteristics of fabric. The grafted fabrics with various graft levels were characterized by thermal gravimetric analysis (TGA), ATR-FTIR spectroscopy, contact angle, differential scanning calorimetry (DSC), X-ray diffraction (XRD), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The initial decomposition temperature and T 50 were increased with the increase in degree of grafting. The percentage crystallinity was decreased as the degree of grafting increases. The detailed elemental analysis was done by X-ray photoelectron spectroscopy (XPS). The atomic ratio (O 1s /C 1s ) was found to increase significantly with increasing the degree of grafting and reached 0.64 at 14.5% grafting from 0.38 for virgin PET. The surface topography and morphology was strongly influenced as the degree of grafting was increased.

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Section: Resultsmentioning

confidence: 56%

Characterization of acrylic acid grafted poly(ethylene terephthalate) fabric

Grover¹,

Singh²,

Gupta³

2010

J of Applied Polymer Sci

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“…Resistivity of nongrafted FEP film was found to be in the range of 10 12 Ohm.cm. However, in the grafted membrane, the resistivity decreases very fast and tends to reach the minimum value at and beyond 24 % degree of grafting [14].…”

Section: Introductionmentioning

confidence: 97%

Plasma activated perfluoroethylenepropylene for cytocompatibility enhancement

Slepička

Peterková

Rimpelová

et al. 2016

Polymer Degradation and Stability

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“…Furthermore, radiation induced graft polymerization is a convenient and powerful technique appropriate for modification of polymers. This methodology allows the introduction of specific chemical units for specific applications [5,6]. ''Intelligent'' or smart polymers are stimuliresponsive materials that undergo volume changes in response to changes in temperature and pH.…”

Section: Introductionmentioning

confidence: 99%

Radiation-Grafting of Thermo- and pH-Sensitive Poly(N-Vinylcaprolactam-co-Acrylic Acid) onto Silicone Rubber and Polypropylene Films

et al. 2014

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This work focuses on the effect of gamma-ray radiation conditions on the stimuli-responsive of polypropylene (PP) films and silicone (SR) rubber substrates grafted with N-vinylcaprolactam (NVCL) and acrylic acid (AAc). PP films and SR rubber were weighed and placed into glass ampoules and exposed to 60 Co γ-source in the presence of air at room temperature, at dose rate around 12 kGy h -1 and dose between 5 and 70 kGy. Solutions of NVCL and AAc (1/1, v/v), 50 % monomer concentration (v/v) in toluene were added to the samples, the ampoules were degassed by repeated freeze-thaw cycles (5 times per 20 min) and sealed. The ampoules were heated at 60 or 70 °C at reaction time per 12 h. To extract the residual monomer and homopolymer formed during the grafting, the samples were soaked in ethanol for 24 h and then in distilled water, followed by drying under vacuum to constant weight. The values of grafting percentage achieved at a given irradiation dose were higher for SR than for PP. Samples where characterized by FTIR-ATR, DSC, swelling, LCST, and pH critical point.

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Preparation of ion exchange membranes by radiation grafting of acrylic acid on FEP films

Cited by 27 publications

References 21 publications

Characterization of acrylic acid grafted poly(ethylene terephthalate) fabric

Characterization of acrylic acid grafted poly(ethylene terephthalate) fabric

Plasma activated perfluoroethylenepropylene for cytocompatibility enhancement

Radiation-Grafting of Thermo- and pH-Sensitive Poly(N-Vinylcaprolactam-co-Acrylic Acid) onto Silicone Rubber and Polypropylene Films

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