TECHNOLOGICAL ASPECTS OF NITRATION OF STARCH WITH NITROGEN-SULFUR ACID MIXTURE

Authors

  • Vladimir K. Lukashov Shostka Institute of Sumy State University, Ukraine
  • Vita I. Sereda Шосткинский институт Сумского государственного университета, Ukraine
  • Sergey D. Tishchenko Шосткинский институт Сумского государственного университета, Ukraine

DOI:

https://doi.org/10.15421/081918

Keywords:

нитрование, крахмал, нитрат крахмала, нитрат амилозы, содержание азота, кислотный гидролиз

Abstract

Aim. To establish patterns of starch nitration process, allowing to justify the choice of the composition of the nitrating mixture and the regime parameters of nitration. Methods. The degree of nitration was expressed in terms of the nitrogen content in the resulting starch nitrate, which was determined by the ferrosulfate method. We also carried out an assessment of the surface state of the starch grains and starch nitrate at a 300-fold magnification using an optical microscope. Results. It was established that the dependences of the nitrogen content in starch nitrate on the composition of the nitrating mixture and the operating parameters of the process pass through maxima. At certain values of the composition of the nitrous mixture, the nitration process is disturbed, which is associated with side reactions. When starch is nitrated with a nitrogen-sulfuric acid mixture, the resulting starch nitrate retains the granular structure of the original starch, but characteristic defects are formed on the surface of its grains. Conclusions. The maximum nitrogen content in starch nitrate is achieved at H2SO4/HNO≈ 3, a water concentration in the nitrating mixture 8 – 10 %, temperature 35 – 40 °C, nitration time 30 – 35 minutes and nitration module 30–40. The ratio of the rates of the nitration process and side reactions determines the stability of the nitration process. It is broken when H2SO4/HNO3  0.5 and H2SO4/HNO3  7.0 as well as when the concentration of water in the nitrous mixture СH2O ≥ 20 %. The surface defects of starch nitrate grains are associated with dissolution and extraction into a nitrating mixture of amylose nitrate, as a result of which one should expect changes in the internal structure of starch nitrate grains.

Author Biographies

Vladimir K. Lukashov, Shostka Institute of Sumy State University

кафедра Химической технологии высокомолекулярных соединений

Vita I. Sereda, Шосткинский институт Сумского государственного университета

преподаватель кафедры "Химической технологии высокомолекулярных соединений"

Sergey D. Tishchenko, Шосткинский институт Сумского государственного университета

магистр кафедры "Химической технологии высокомолекулярных соединений"

References

Suvorova A.I., Tyukova I.S., Trufanova E.I. (2000). Biodegradable polymeric materials based on starch. Uspehi himii, 6, 494 – 504 (in Russian).

Karpunin I.I., Kuzmich V.V., Balabanova R.F. (2015). Classification of biodegradable polymers. Nauka i tehnika, 5, 53 – 59 (in Russian).

Razzokov Kh.K. (2017). Investigation of the physicomechanical properties of compositions based on natural and synthetic water-soluble polymers and their application. Ucheniy XXI veka, 1 – 3 (26), 36 – 39. (in Russian).

Poddenezhny E.N., Boyko A.A., Alekseenko A.A., Drobyshevskaya N.E., Uretskaya O.V. (2015). Progress in obtaining starch-based biodegradable composite materials. Vestnik GGTU im. P. O. Suhogo, 2, 31 – 41. (in Russian).

Kornienko N.D. Lygina E.G., Chupurova L.V., Pinchukova K.V., Mullina E.R., Mishurina O.A. ( 2015).On the influence of the chemical nature of adhesive compositions on the adhesion efficiency of cellulosic composite materials. Uspehi sovremennogo estestvoznaniya, 11 (part 1), 54 – 57 (in Russian).

Kryazhev V.N., Romanov V.V., Shirokov V.A. (2010). Recent advances in chemistry and technology of starch derivatives. Himiya rastitelnogo syirya, 1, 5 – 12.

Department of the Army Technical Manual Military Explosives. (1995). TM9 – 1300 – 214. U. S. Government Printing Office, 388 421 / 140013.

Orlova E. Yu. (1973). Chemistry and technology of blasting explosives. Khimiya, 688 (in Russian).

Butrim S.M., Bil´dynkevich T.O., Butrim S.N., Yurkshtovich T.L. (2002). Heterogeneus O.Nitration of Carboxystarch. Russion Journal of Applied Chemistry, 75 (8), 1320 – 1324.

Israelashvili S, (1950). Mehanism of the Nitration of Starch. Nature, 165, 686.

Malakhov R. А. (1960). Physico-chemical bases of the process of nitration of cellulose. ONTI, 286 (in Russian).

Kozlova N.Yu., Romanko N.A., Khatsrinov A.I., Gatina R.F. (2016). Development of methods for the determination of nitrosylsulfuric acid in the composition of the acid mixture HNO3 - H2SO4 - H2O. Vestnik Kazan. tehnol. un-ta, 19 (14), 66 – 69 (in Russian).

Stovbun S. V., Nikolsky S. N., Melnikov V. P., Mikhalev M. G., Litvin M. A. (2016).Chemical Physics of Cellulose Nitration. Himicheskaya fizika, 35 (4), 20 – 35 (in Russian).

Bolotova K.S., Chukhlin D.G., Mayer P.V. Guryanova, A. A. (2016). Morphological features of the fibrillar structure of plant and bacterial cellulose. Lesnoy zhurnal, 6, 153 – 165 (in Russian).

Lobanova V. S. (2014). Features of water absorption and fat absorption of potato and buckwheat starches by treating them with electromagnetic waves of the microwave range. Fundamentalnyie issledovaniya, 6, 719 -722 (in Russian).

Yagofarov D. Sh., Kanarsky A. V., Sidorov Yu. D., Polivanov M. A. (2012). Physical and chemical properties of potato starch. Vestnik Kazan. tehnol. un-t., 15 (12), 212 – 215 (in Russian).

Litvyak V., Alekseenko M., Kanarsky A. (2016). Formation of starch granules and the mechanism of chemical modification of starch. Nauka i innovatsii, 3 (157), 63 – 67 (in Russian).

Vinokurov A. Yu., Koptelova E.K., Lunin N. D., Kanarsky A. V., Vodyashkin A. A., Zabolotsky A. I. (2015). Morphological, structural and rheological properties of starch cationized in an aqueous suspension. Vestnik Kazan. tehnol. un-ta,18 (19), 135 – 140 (in Russian).

Jane J. Current. (2006) Understanding on Starch Granule Structure. Journale of Applied Glycoscience, 53, (3), 205 – 213.

Buleon A., Colonna P., Planchot V., Ball S. (1998). Starch granules: Structure and Biosynthesis. International Journal Biological Macromolecules, 23, 85 – 112.

Litvyak V.V., Lovkie Z. V. (2014). Fundamental and applied studies of starch and starch products. Trudyi Belorus. gosud. un-ta, 9, Part 2, 152 – 163 (in Russian).

Litvyak V., Moscva V., Romashko O., Yurkshtovich N., Kanutsky F.( 2012). Investigation of the features of the mechanism of chemical modification of starch. Nauka i innovatsii, 9 (115), 64 – 69 (in Russian).

Litvyak V.V., Canary I. V. (2016). Features of cationization of α-D-glucopyranose starch in the 3C-position of N-(3-chloro-2-hydroxypropyl)-N,N,N-trimethylammonium chloride. Plasticheskie massyi, (7 – 8), 27 – 31 (in Russian).

Butrim S.M., Litvyak V.V. (2014). Peculiarities of cationization of 3-chloro-2-hydroxypropyl-trimethylammonium chloride of tapioca starch. Izvestiya vyissh. ucheb. zaved. Ser. Himiya i himicheskaya tehnologiya, 57 (4), 90 – 94 (in Russian).

Zakirova A. Sh., Monakhova T. N., Kanarsky A. V., Kanarskaya Z. A. (2013). Influence of enzymatic processing of potato starch on the physicomechanical properties of biofilms. Vestnik Kazan. tehnol. un-ta,16 (6), 117 – 12159 (in Russian).

Panchenko O. A., Titova O. A.( 2005).Problems and achievements in obtaining cellulose nitrates. Himiya rastitelnogo syirya, 3, 85 – 88 (in Russian).

Yudin N. V., Dao Thanh Viet, Yakubov D. B., Zbarsky V. L.( 2008). Study of the connection of nitrating activity and acidity of sulfur-nitric acid mixtures in a wide range of compositions. Uspehi v himii i himicheskoy tehnologii, 21 (4) (84), 73–74 (in Russian).

Tishchenko, S. D., Lukashov, V. K. (2018). Development of a method for determining the content of nitrogen in nitrate of starch. MaterIali III Vseukr. nauk.-metod. konf.: «OsvIta, nauka ta virobnitstvo: rozvitok ta perspektivi», m. Shostka. Sumi: SumDU, 2–30 (in Ukrainian).

Published

2019-10-25