Kinetics of radiation-induced graft copolymerization of styrene with ethyl acrylate

1979 ◽  
Vol 17 (6) ◽  
pp. 1701-1709 ◽  
Author(s):  
H. Omichi ◽  
K. Araki
Keyword(s):  
Graft Copolymerization ◽  
Ethyl Acrylate ◽  
Radiation Induced ◽  
Kinetics Of

Kinetics of radiation-induced graft copolymerization of vinyl acetate onto ethylene-co-propylene rubber membranes

1997 ◽  
Vol 49 (2) ◽  
pp. 275-278 ◽  
Author(s):  
Fang Yue-E ◽  
Lu Xiao Bing ◽  
Wang Shan Zhi ◽  
Zhao Xia ◽  
Fang Wang
Keyword(s):  
Vinyl Acetate ◽  
Graft Copolymerization ◽  
Radiation Induced ◽  
Kinetics Of

Kinetics of Radiation-Induced Graft Copolymerization of Vinylbenzyl Chloride onto Nylon Fibers

2015 ◽  
Vol 719-720 ◽  
pp. 63-66 ◽  
Author(s):  
T.M. Ting ◽  
Mohamed Mahmoud Nasef ◽  
Kamaruddin Hashim
Keyword(s):  
Activation Energy ◽  
Fourier Transform ◽  
Graft Copolymerization ◽  
Monomer Concentration ◽  
Absorbed Dose ◽  
Nylon 6 ◽  
Kinetic Rate ◽  
Radiation Induced ◽  
Ft Ir ◽  
Kinetics Of

The graft copolymerization of vinylbenzyl chloride (VBC) onto nylon-6 fiber was investigated by the pre-irradiation method using electron beam. The effects of grafting parameters, monomer concentration, absorbed dose and reaction temperature were investigated. The empirical kinetic rate equation dGo/dt=k[M]^0.86*[D]^1.06 was used to describe grafting of VBC onto nylon-6. The overall activation energy for graft copolymerization of VBC was found to be 22.6 kJ/mol. The results revealed that the grafting kinetic was controlled by the amounts of trapped radicals and monomer molecules. Fourier transform infrared (FT-IR) was used to provide evidence for the formation of grafted copolymers.

Radiation Induced Graft Copolymerization of Methyl Acrylate and Ethyl Acrylate onto Poly(tetrafluoroethylene-co-ethylene) Film

2002 ◽  
Vol 10 (5) ◽  
pp. 391-404 ◽  
Author(s):  
Inderjeet Kaur ◽  
B. N. Misra ◽  
Raj Kumar ◽  
Baljit Singh
Keyword(s):  
Thermogravimetric Analysis ◽  
Ir Spectroscopy ◽  
Thermal Resistance ◽  
Methyl Acrylate ◽  
Graft Copolymerization ◽  
Ethyl Acrylate ◽  
Vinyl Monomers ◽  
Optimum Conditions ◽  
Radiation Induced

To introduce functional moieties into Tefzel® film, a copolymer of tetrafluoroethylene and ethylene, graft copolymerization of vinyl monomers such as methyl acrylate (MA) and ethyl acrylate (EA) was attempted by a pre-irradiation method in aqueous medium. Optimum conditions for obtaining the maximum grafting was evaluated for both monomers. Maximum grafting of MA (306.0%) and EA (462.1%) was obtained at a total dose of 25.4 and 31.9kGy respectively, using [MA] = 2.20 mol/L and [EA] 0.032 moles. The effect of aliphatic alcohols of varying chain length, such as methanol, ethanol, n-butanol, 1-Pentanol and cyclohexanol on the percentage grafting of MA & EA was also studied. Characterization of Tefzel® and grafted Tefzel® films was carried out by IR spectroscopy and thermogravimetric analysis. Grafted Tefzel® film was found to have improved thermal resistance.

Radiation Induced Graft Copolymerization of Vinyl Acetate and Isopropenyl Acetate Onto Isotactic Polypropylene

1996 ◽  
Vol 61 (2) ◽  
pp. 259-267 ◽  
Author(s):  
Bhupendra N. Misra ◽  
G. S. Chauhan ◽  
Inderjeet Kaur
Keyword(s):  
Vinyl Acetate ◽  
Isotactic Polypropylene ◽  
Graft Copolymerization ◽  
Optimum Conditions ◽  
Reaction Parameters ◽  
Maximum Percentage ◽  
Radiation Induced ◽  
Isopropenyl Acetate

Radiation-induced graft copolymerization of vinyl acetate (VAC) and isopropenyl acetate (PAC) onto isotactic polypropylene (IPP) has been studied. The percentage of grafting was calculated for various reaction parameters, and the optimum conditions for attaining the maximum percentage of grafting were determined. Maximal achieved extents of grafting are 39% and 29% for VAC and PAC, respectively. The reactivity of the two monomers with respect to grafting is discussed.

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