Azobisizobutironitril ile akrilamit-metakrilik asit karışımının poli (etilen teraftalat) lifler üzerine aşılanma kinetiği

Bu çalışmada, azobisizobutirönitril ile akrilamit-metakrilik asit karışımının poli(etüen teraftalat) lifler üzerine aşılanma kinetiği incelendi. Aşı kopolimerizasyon hızının azobisizobutirönitril, akrilamit ve metakrilik asit derişimlerinin sırasıyla 1,39, 0,79 ve 0,61 inci dereceleriyle orantılı olduğu bulundu. Aşı kopolimerizasyon tepkimesi 70 °C den 90 °C ye kadar değişen beş farklı sıcaklıkda gerçekleştirilerek genel aktivasyon enerjisi 159,3 kj/mol olarak bulundu.

Kinetics of the grafting of acrylamide-methacrylic acid mixture onto poly (ethylene terephthalate) fibers with azobisisobutyronitrile

Ih this study kinetics of the grafting of acrylamide-methacrylic acid mixture onto poly(ethylene terephthalate) fibers with azobisisobutyronitrile was investigated. The rate of grafting was found to be proportional to the 1.39, 0.79 and 0.61 powers of azobisisobutyronitrile, acrylamide and methacrylic acid, concentrations, respectively. By carrying out the graft copolymerization reaction at five different temperatures ranging from 70 °C to 90 °C, the overall rate activation energy of the reaction was found to be 159,3 Kj/moi

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1.Saçak, M., and Çelik, M., "Hydrogen peroxide initiated grafting of acrylamide onto poly(ethylene terephthalate) fibers in benzyl alcohol", J. Appl. Polym. Sci., 59, 1191 (1996)
2.Çelik, M., and Saçak, M., "Grafting of methacrylic acid onto poly(ethylene terephthalate) fibers using azobisisobutyronitrile", J. Macromol. Sci.-Pure Appl. Chem., A33(2), 191 (1996)
3.Saçak, M., Eski, N., and Talu, M., "Graft copolymerization of methyl methacrylate onto poly(ethyiene terephthalate) fibers using benzoyl peroxide", J.M.S.-Pure Appl. Chem., A32,1735 (1995)
4.Çelik, M., and Saçak, M., "Grafting of acrylamide-methacrylic acid mixture onto poly(ethylene terephthalate) fibers by azobisisobutyronitrile", J. Appl. Polym. Sci., 59, 609 (1996)
5.Saçak, M;, and Oflaz, F., "Benzoyl-peroxide- initiated graft copolymerization of poly(ethylene terephthalate) fibers with acrylic acid", J, Appl. Polym. Sci., 50,1909(1993)
6.Saçak, M., "Kinetics of the grafting of methacrylic acid onto poly(ethylene terephthalate) fibers using benzoyl-peroxide" Tr. J.of Chemistry, 18, 84 (1994)
7.Lenka, S., and Nayak, P.L., " Photoinduced graft copolymerization. "VIII. Graft copolymerization of methyl methacrylate onto PET using peroxydiphosphate as photoinitiator", Polym. Chem. Ed., 21,1871 (1983)
8.Suzuki, K., Kido, I., and Katsuki, K., Sen'i Gakkaishi, 29(10), T-428; Chem. Abstf., 80,38142n(1973)
9.Saçak, M., "The rate of grafting and some kinetic parameters of the graft copolymerization of poly(ethylene terephthalate) fibers with acrylamide", Commun. Fac. Sci. Univ. Ank. Serie B., 34,169 (1988)
lO.Perrin, D.D., Armarego, W.L.F., and Perrin, D.R., "Purification of Laboratory Chemicals, Pergamon Press ltd., London (1966)
11.Saçak, M., Baştuğ, N., and Talu, M., "Azobisisobutyronitrile initiated graft copolymerization of methyl methacrylate onto poly(ethylene terephthalate) fibers", J. Appl. Polym. Sci., 50,1123 (1993)