Radiation-induced solid-state copolymerization in binary acrylamide-maleic anhydride systems

Nugay, T.
Küçükyavuz, S.
γ-Ray-initiated copolymerization of acrylamide and maleic anhydride was studied in the solid state at 25°C. The polymeric product was found to be free of the homopolymers. The mole fraction of acrylamide in the monomer mixture was varied from 0.33 to 0.91. The copolymerization reached a ‘limiting conversion’ the value of which was dependent on the composition of the monomer feed. The mole fraction of maleic anhydride in the copolymers did not exceed 0.50 and the compositions of copolymers obtained from acrylamide-rich mixtures were virtually the same as those from the monomer feed compositions. The alternating tendency of maleic anhydride was evidenced by the variation of the copolymer compositions and the consumption rates of the individual monomers.


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In this study, N-vinylcaprolactam was polymerized via gamma irradiation in the solid state. The polymerization was carried out at room temperature both under vacuum and open to atmosphere. The polymerization mechanism showed auto acceleration and the rate of polymerization was higher in the presence of oxygen. Complete conversion was obtained under vacuum conditions and 90% conversion was obtained in the case of polymerization open to atmosphere. The polymers were characterized by FTIR, NMR, DSC, TGA, GPC, ...
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Terepthalic acid bis-(2-thiophen-3-yl-ethyl)ester (TATE) was synthesized through the reaction of 2-thiophen-3-yl-ethanol and terepthaloyl chloride. Homopolymer of TATE was synthesized via potentiostatic and potentiodynamic methods by using tetrabutylammonium tetrafluoroborate (TBAFB) as the supporting electrolyte in dichloromethane/borontrifluoride ethylether solvent mixture(DM/BFEE) (8:2, v/v). Copolymerisation of TATE with thiophene was achieved in DM/BFEE solvent mixture (8:2, v/v) by using TBAFB as the ...
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Citation Formats
T. Nugay and S. Küçükyavuz, “Radiation-induced solid-state copolymerization in binary acrylamide-maleic anhydride systems,” Polymer, pp. 958–960, 1990, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/51387.