Abstract
Thermal transformations (at 340 to 390 °C) of coprecipitates of iron and cobalt acrylates, [Fe3O(CH2CHCOO)6OH][Co(CH2CHCOO)2]2.4 (1) and [Fe3O(CH2CHCOO)6OH][Co(CH2CHCOO)2]1.5·3H2O (2), are studied. The dependence of the degree of gas evolution (η) on time is described by the equation (ŋ) wherek 1=2.3 · 1012 · exp[−49500/(RT)] s−1,k 2=6.0 · 106 · exp[−33000/(RT)] s−1 andk 1=2.6 · 1012 · exp[−49000/(RT)] s−1,k 2=6.6 · 105 · exp[−30000/(RT)] s−1 for cocrystallizates1 and2, respectively. The coefficient ŋ1∞ decreases as the temperature increases. The value of ŋ1∞ for compound1 is higher than that for compound2. The composition of products of the transformations of1 and2 are studied. The main solid state products of the decomposition are nanometer-sized particles of cobalt ferrite, CoFe2O4, with a narrow size distribution stabilized by the polymeric matrix. The thermal transformations of cocrystallizates1 and2 include dehydration, thermal decomposition, copolymerization in the solid state, and decarboxylation of the metallocarboxylate groups of the polymer. The effect of the ratio between the Fe clusters and the Co-containing fragments on the process of thermal transformation is analyzed.
Similar content being viewed by others
References
E. I. Aleksandrova, G. I. Dzhardimalieva, A. S. Rozenberg, and A. D. Pomogailo,Izv. Akad. Nauk, Ser. Khim., 1993,308 [Russ. Chem. Bull., 1993,42, 264 (Engl. Transl.)].
E. I. Aleksandrova, G. I. Dzhardimalieva, A. S. Rozenberg, and A. D. Pomogailo,Izv. Akad. Nauk, Ser. Khim., 1993,303 [Russ. Chem. Bull., 1993,42, 259 (Engl. Transl.)].
A. S. Rozenberg, E. I. Aleksandrova, G. I. Dzhardimalieva, A. N. Titkov, and A. D. Pomogailo,Izv. Akad. Nauk, Ser. Khim., 1993, 1743 [Russ. Chem. Bull., 1993,42, 1666 (Engl. Transl.)].
S. P. Gubin and I. D. Kosobudskii,Usp. Khim., 1983,52, 1350 [Suss. Chem. Rev., 1983,52 (Engl. Transl.)].
S. P. Gubin,Zh. Vses. Khim. Obshch. im. D. I. Mendeleeva, 1987,32, 3 [Mendeleev Chem. J., 1987,32 (Engl. Transl.)].
G. V. Lisichkin and V. F. Petrunin,Zh. Vses. Khim. Obshch. im. D. I. Mendeleeva, 1991,36, 131 [Mendeleev Chem. J., 1991,36 (Engl. Transl.)].
A. A. Babushkin, P. A. Bazhulin, F. A. Korolev, L. V. Levshin, V. K. Prokofév, and A. P. Striganov,Metody spektral'nogo analiza [Methods of Spectral Analysis], Izd. Mosc. Univ., Moscow, 1962 (in Russian).
K. Nakamoto,Infrared and Raman Spectra of Inorganic and Coordination Compounds, Wiley & Sons, New York, 1962.
P. H. McCuskey, R. L. Suyder, and R. A. Coudrate,J. Sol. State Chem., 1989,83, 332.
L. I. Mirkin,Spravochnik po rentgenostrukturnomu analizu polikristallov [A Handbook of X-ray Diffraction Analysis of Polycrystals], Fizmatgiz, Moscow, 1961 (in Russian).
Yu. M. Shul'ga, O. S. Roshchupkina, G. I. Dzhardimalieva, I. V. Chernushevich, A. F. Dodonov, Yu. V. Baldokhin, P. Ya. Kolotyrkin, A. S. Rozenberg, and A. D. Pomogailo,Izv. Akad. Nauk, Ser. Khim., 1993,1739 [Russ. Chem. Bull., 1993,42, 1661 (Engl. Transl.)].
M. A. Porai-Koshits, inKristallokhimiya, Itogi Nauki i Tekhniki [Crystal Chemistry, Results of Science and Technique], VINITI AN SSSR, Moscow, 1981,15, 13 (in Russian).
R. C. Mehrotra and R. Bohra,Metal Carboxylates, Acad. Press, London-New-York, 1983.
A. van den Bergen, R. Colton, and M. Percy,Inorg. Chem., 1993,32, 3408.
S. J. Gregg and K. S. W. Sing,Adsorption, Surface Area, and Porosity, Academic Press, New York, 1967.
Author information
Authors and Affiliations
Additional information
For Part 40, seeRuss. Chem. Bull., 1994,43, 2020.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 885–893, May, 1995.
The authors are grateful to A. N. Titkov for optical microscopic and electron microscopic studies.
Rights and permissions
About this article
Cite this article
Rozenberg, A.S., Aleksandrova, E.I., Dzhardimalieva, G.I. et al. Preparation and reactivity of metal-containing monomers. Russ Chem Bull 44, 858–866 (1995). https://doi.org/10.1007/BF00696917
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00696917