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Synthesis of Novel Plasticizers Based on Poly(ε-caprolactone) and a Consideration of Their Influence on Nitroglycerine Migration in Double Base Solid Propellants

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The presence of nitroglycerine (NG) in double base propellants and its subsequent migration from the propellant towards the inhibitor has always been an important issue. This problem may be considerably reduced by exploiting the concept of the introduction of electron donor sites to the propellant formulation. Plasticizers based on ε-caprolactone (ε-CL) were synthesized and characterized, and their activities for absorbing nitroglycerine were investigated. According to the results, the order of NG absorption is: PCL-(OH)2 < PCL-(OH)3< PCL-(OH)4< H-PCL. The observed differences in the properties of the plasticizers is discussed in terms of structural considerations. The data also showed that the hyperbranched poly(ε-caprolactone) (H-PCL) has the greatest effect in decreasing NG migration. Furthermore, the activity of these plasticizers in decreasing NG migration was also investigated by IR analysis.
Rocznik
Strony
150--161
Opis fizyczny
Bibliogr. 20 poz., rys., tab.
Twórcy
autor
  • Faculty of Chemistry and Chemical Engineering, Malek-ashtar University of Technology, Lavizan 16765-3454 Tehran, Iran
autor
  • Faculty of Chemistry and Chemical Engineering, Malek-ashtar University of Technology, Lavizan 16765-3454 Tehran, Iran
autor
  • Faculty of Chemistry and Chemical Engineering, Malek-ashtar University of Technology, Lavizan 16765-3454 Tehran, Iran
Bibliografia
  • [1] Sućeska, M.; Matečić Mušanić, S.; Fiamengo Houra, I. Kinetics and Enthalpy of Nitroglycerin Evaporation from Double Base Propellants by Isothermal Thermogravimetry. Thermochim. Acta 2011, 510: 9-16.
  • [2] Agrawal, J. P.; Pokharkar, R. D. Inhibition of Rocket Propellants. J. Sci. Ind. Res. 1980, 39: 633-640.
  • [3] Agrawal, J. P.; Vergnaud, J. M. Genesis of Development of Inhibition Technology for Rocket Propellants and Recent Work. J. Sci. Ind. Res. 1992, 51: 375-382.
  • [4] Agrawal, J. P.; Agawane, N. T.; Diwakar, R. P.; Chandra, R. Nitroglycerine (NG) Migration to Various Unsaturated Polyesters and Chloropolyesters Used for Inhibition of Rocket Propellants. Propellants Explos. Pyrotech. 1999, 24: 371-378.
  • [5] Agrawal, J. P.; Montheard, J. P. Structural Aspects of Novel Unsaturated Polyesters. J. Macromol. Sci. Pure. 1993, 30: 59-73.
  • [6] Agrawal, J. P.; Singh, H. Qualitative Assessment of Nitroglycerin Migration from Double-Base and Composite Modified Double-Base Rocket Propellants: Concepts and Methods of Prevention. Propellants Explos. Pyrotech. 1993, 18: 106-110.
  • [7] Jolley, W. H.; Hooper, J. F.; Hilton, P. R.; Bradfield, W. A. Studies on Coning in End-burning Rocket Motors. J. Propul. Power 1986, 2: 223-227.
  • [8] Propellants-Manufacture, Hazards and Testing. (Gould, R. F., Ed.) American Chemical Society Publication, Washington 1969; ISBN 370-000-390-0.
  • [9] Caire-Maurisier, M.; Tranchant, J. The Migration of Nitroglycerin into the Liner of Double-base Propellants. (Fr.) Propellants Explos. Pyrotech. 1977, 2: 101-104.
  • [10] Agrawal, J. P.; Chowk, M. P.; Satpute, R. S.; Kulkarni, K. S. The Role of Alumina Trihydrate Filler on Semiflexible Unsaturated Polyester Resin-4 and Inhibition of Double-Base Rocket Propellants. Propellants Explos. Pyrotech. 1985, 10: 77-81.
  • [11] Agrawal, J. P.; Kulkarni, K. S.; Deo, S. S. The Effect of Fillers on Chloropolyester Blend CPB 4 and Inhibition of Double-base Propellants. J. Hazard. Mater. 1985, 10, 43-58.
  • [12] Agrawal, J. P. Migration of Nitroglycerine through Filled Unsaturated Polyester and Chloropolyesters Blend. Indian J. Technol. 1990, 28: 538-542.
  • [13] Agrawal, J. P.; Kulkarni, K. S. Tetrachloro Phthalic Anhydride Based Chloropolyesters for Inhibition of Double Base Rocket Propellants. Def. Sci. J. 1986, 36: 409-420.
  • [14] Agrawal, J. P.; Kulkarni, K. S. Tetrachlorophthalic Anhydride-Based Flame-Retardant Chloropolyesters for Inhibition of Double-Base Propellants. J. Appl. Polym. Sci. 1986, 32, 5203-5214.
  • [15] Ihre, H.; Hult, A.; Fréchet, J. M. J.; Gitsov, I. Double-Stage Convergent Approach for the Synthesis of Functionalized Dendritic Aliphatic Polyesters Based on 2,2-Bis(hydroxymethyl)propionic acid. Macromolecules 1998, 31: 4061-4068.
  • [16] Pant, C. S.; Wagh, R. M.; Nair, J. K.; Gore, G. M.; Thekkekara, M.; Venugopalan, S. Synthesis and Characterization of First Generation Dendritic Azidoesters. Propellants Explos. Pyrotech. 2007, 32: 461-467.
  • [17] Potcieter, H. F.; Sanderson, R. D. NG-Migration into Double-Base Inhibitors. 1. Sorption. J. Appl. Polym. Sci. 1993, 50: 1761-1772.
  • [18] Yang, B.; Bai, Y.; Cao, Y. Effects of Inorganic Nano-particles on Plasticizers Migration of Flexible PVC. J. Appl. Polym. Sci. 2010, 115: 2178-2182.
  • [19] Stenson, R. Chemical and Physical Factors Governing the Storage Life of Solid Propellant Rocket Motors. AIAA, Paper No. 68-526, 1976, 7-9.
  • [20] Rao, K. P. C.; Sikder, A. K.; Kulkarni, M. A.; Bhalerao, M. M.; Gandhe, B. R. Studies on n-Butyl Nitroxyethylnitramine (n-BuNENA): Synthesis, Characterization and Propellant Evaluations. Propellants Explos. Pyrotech. 2004, 29: 93-98.
Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3f8db51b-dc19-4c74-bbc7-f1265e331a62
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