Abstract
Adsorption of water vapor on methacrylate copolymers and terpolymers was studied. An increase in the content of the cross-linking agent gives rise to increase in the limiting adsorption of water vapor at the saturation pressure (a s) and to decrease in the concentration of primary adsorption centers. Modification of the initial copolymer containing 60 % of 2,3-epoxypropyl methacrylate (EPMA) monomer and 40 % of cross-linking agent, ethylene dimethacrylate, with diethylenetriamine (DETA) results in an increase in thea s value, while modification with C12 and C18 alkyl, benzyl, and phenyl groups gives rise to decrease in thea s values for the copolymeric sorbents. The concentration of primary adsorption centers (a m) increases considerably on modification of the copolymer with DETA and C12 groups and decreases markedly on modification with benzyl and phenyl groups. For terpolymers, containing EPMA and styrene, an increase in the styrene/EPMA ratio reduces thea s anda m values. The copolymer modified with DETA groups possesses the most hydrophilic properties, while the copolymer modified with benzyl group exhibits the most hydrophobic properties. The mechanism of adsorption of water molecules on the polymers is discussed.
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L. D. Belyakova,Usp. Khim., 1991,60, 374 [Russ. Chem. Rev., 1991,60 (Engl. Transl)].
L. D. Belyakova, A. V. Kiselev, N. P. Platonova, and T. I. Shevchenko,Adv. Colloid Interface Sci., 1984,211, 55.
K. I. Sakodynskii and L. I. Panina,Polimernye sorbenty dlya molekulyarnoi khromatografti [Polymeric sorbents for molecular chromatography], Nauka, Moscow, 1977, 167 p. (in Russian).
R. Sh. Vartapetyan and A. M. Voloshchuk,Sovremennye problemy teorii adsorbtsii, Trudy Sed'moi mezhdunarodnoi konferentsii po teoreticheskim voprosam adsorbtsii [Modem problems of the theory of adsorption, Proceedings of VII international conference on theoretical problems of adsorption], PAIMS, Moscow, 1995, 28.
R. Sh. Vartapetyan, A. M. Voloshchuk, M. M. Dubinin, and T. A. Moskovskaya,Izv. Akad. Nauk SSSR, Ser. Khim., 1988, 1473 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1988,37, 1299 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, M. M. Dubinin, and T. A. Moskovskaya.Izv. Akad. Nauk SSSR, Ser. Khim., 1988, 1961 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1988,37, 1751 (Engl. Transl.)].
R. Sh. Vartapetyan and A. M. Voloshchuk,Adsorbtsiya i khromatografiya makromolekul [Adsorption and chromatography of macromolecules], PAIMS, Moscow, 28 (in Russian).
R. Sh. Vartapetyan, A. M. Voloshchuk, and E. B. Shumilina,Izv. Akad. Nauk, Ser. Khim., 1993, 54 [Russ. Chem. Bull., 1993,42, 46 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, M. M. Dubinin, O. E. Babkin, G. K. Ivakhnyuk, and N. F. Fedorov,Izv. Akad. Nauk SSSR, Ser. Khim., 1987, 730 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1987,36, 660 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, and M. M. Dubinin,Izv. Akad. Nauk SSSR, Ser. Khim., 1987, 972 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1987,36, 892 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, and N. S. Polyakov,Izv. Akad. Nauk, Ser. Khim., 1993, 2048 [Russ. Chem. Bull., 1993,42, 1960 (Engl. Transl.)].
O. G. Larionov, V. V. Petrenko, N. P. Platonova, J. Hradil, F. Svec, and V. Marousek,Zh. Fiz. Khim., 1991.65, 1671 [J. Phys. Chem. USSR, 1991,65 (Engl. Transl.)].
N. P. Platonova, O. G. Tataurova, R. A. Bulgakova, J. Hradil, and F. Svec,Zh. Fiz. Khim., 1993,67, 1480 [J. Phys. Chem., 1993,67 (Engl. Transl.)].
V. V. Azanova, J. Hradil, E. Svec, Z. Pelzbaner, and E. F. Panarin,React. Polym., 1990,12, 247.
S. J. Gregg and K. S. Sing,Absorption, surface area, and porosity, Second Edition, Academic Press, London, New York, 1982.
A. A. Tager,Fizikokhimiya polimerov [Physicochemistry of polymers], Khimiya, Moscow, 1978, 536 p. (in Russian).
C. Pierce and R. N. Smith,J. Phys. Colloid Chem., 1950,54, 784.
M. M. Dubinin,Usp. Khim., 1955,24, 513 [Russ. Chem. Rev., 1955,24 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, and M. M. Dubinin,Izv. Akad. Nauk SSSR, Ser. Khim., 1984, 1447 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1984,33, 1331 (Engl. Transl.)].
G. G. Malenkov and M.M. Dubinin,Izv. Akad. Nauk SSSR, Ser. Khim., 1984, 1217 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1984,33, 1116 (Engl. Transl.)].
R. Sh. Vartapetyan, A. M. Voloshchuk, M. M. Dubinin, L. A. Chekulina, and S. G. Chepurnoi,Izv. Akad. Nauk SSSR, Ser. Khim., 1986, 2407 [Bull. Acad. Sci. USSR, Div. Chem. Sci., 1986,35, 2201 (Engl. Transl.)].
O. G. Larionov, V. V. Petrenko, and N. P. Platonova,J. Chromatogr., 1991,537, 295.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2163–2167, November, 1995.
The work was financially supported by the Russian Foundation for Basic Research (Project No. 94-03-09550).
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Platonova, N.P., Tataurova, O.G., Vartapetyan, R.S. et al. Adsorption of water vapor on modified methacrylate polymeric sorbents. Russ Chem Bull 44, 2068–2072 (1995). https://doi.org/10.1007/BF00696706
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DOI: https://doi.org/10.1007/BF00696706