TY - JOUR
T1 - Optimization strategies for radiation induced grafting of 4-vinylpyridine onto poly(ethylene-co-tetraflouroethene) film using Box-Behnken design
AU - Mahmoud Nasef, Mohamed
AU - Shamsaei, Ezzatollah
AU - Ghassemi, Payman
AU - Ahmed Aly, Amgad
AU - Hamid Yahaya, Abdul
PY - 2012/4
Y1 - 2012/4
N2 - The radiation induced grafting of 4-vinylpyridine (4-VP) onto poly(ethylene-co-tetrafluoroethene) (ETFE) was optimized using the Box-Behnken factorial design available in the response surface method (RSM). The optimized grafting parameters; absorbed dose, monomer concentration, grafting time and reaction temperature were varied in four levels to quantify their effect on the grafting yield (GY). The validity of the statistical model was supported by the small deviation between the predicted (GY=61%) and experimental (GY=57%) values. The optimum conditions for enhancing. GY were determined at the following values: monomer concentration of 48. vol%, absorbed dose of 64. kGy, reaction time of 4. h and temperature of 68. °C. A comparison was made between the optimization model developed for the present grafting system and that for grafting of 1-vinylimidazole (1-VIm) onto ETFE to confirm the validly and reliability of the Box-Behnken for the optimization of various radiation induced grafting reactions. Fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray diffraction (XRD) were used to investigate the properties of the obtained films and provide evidence for grafting.
AB - The radiation induced grafting of 4-vinylpyridine (4-VP) onto poly(ethylene-co-tetrafluoroethene) (ETFE) was optimized using the Box-Behnken factorial design available in the response surface method (RSM). The optimized grafting parameters; absorbed dose, monomer concentration, grafting time and reaction temperature were varied in four levels to quantify their effect on the grafting yield (GY). The validity of the statistical model was supported by the small deviation between the predicted (GY=61%) and experimental (GY=57%) values. The optimum conditions for enhancing. GY were determined at the following values: monomer concentration of 48. vol%, absorbed dose of 64. kGy, reaction time of 4. h and temperature of 68. °C. A comparison was made between the optimization model developed for the present grafting system and that for grafting of 1-vinylimidazole (1-VIm) onto ETFE to confirm the validly and reliability of the Box-Behnken for the optimization of various radiation induced grafting reactions. Fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and X-ray diffraction (XRD) were used to investigate the properties of the obtained films and provide evidence for grafting.
KW - 4-vinylpyridine
KW - Box-Behnken factorial design
KW - Poly(ethylene-co-tetrafluoroethylene) optimization of grafting parameters
KW - Radiation induced grafting
UR - http://www.scopus.com/inward/record.url?scp=84856399893&partnerID=8YFLogxK
U2 - 10.1016/j.radphyschem.2011.12.019
DO - 10.1016/j.radphyschem.2011.12.019
M3 - Article
AN - SCOPUS:84856399893
SN - 0969-806X
VL - 81
SP - 437
EP - 444
JO - Radiation Physics and Chemistry: the journal for radiation physics, radiation chemistry and radiation processing
JF - Radiation Physics and Chemistry: the journal for radiation physics, radiation chemistry and radiation processing
IS - 4
ER -