Synthesis and Properties of Fluorine‑containing GAP Copolymer‑based Thermoplastic Elastomers

被引：0
|
作者：
Xu M. [1 ,2 ]
Mo H. [1 ]
Chen M. [1 ]
Liu N. [1 ]
Lu X. [1 ]
机构：
[1] Xi'an Modern Chemistry Research Institute, Xi'an
[2] State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an
来源：
Hanneng Cailiao/Chinese Journal of Energetic Materials | 2021年 / 29卷 / 11期
关键词：
Fluorine‑containing; Glycidyl azide polymer (GAP); Mechanical properties; Thermoplastic elastomers;
D O I：
10.11943/CJEM2021082
中图分类号：
学科分类号：
摘要：
In order to enhance the comprehensive properties of glycidyl azide polymer (GAP), the fluorine‑containing GAP copolymer‑based thermoplastic elastomers were developed using fluorine‑containing GAP copolymer as prepolymer, butylene glycol (BDO) as chain extender and the toluene diisocyanate (TDI) as the curing agent. The molecular structure, relative molecular mass, glass transition temperature, thermally stability and mechanical properties of thermoplastic elastomers were explored via FT‑IR, NMR, GPC, DSC, TG/DTG, tensile test and SEM characterizations, respectively. The number‑average molecular weight of the thermoplastic elastomers was determined to be 33520 g·mol-1. The glass transition temperature (Tg) and decomposition temperature (Td) were found to be -33.3 ℃ and 220 ℃, respectively. The tensile strength at break was 5.94 MPa, and the corresponding elongation was 886%. Therefore, the thermoplastic elastomers exhibited good thermal stability and mechanical properties. Cook‑off test was employed to investigate the thermal decomposition characteristics of the fluorine‑containing GAP copolymer‑based elastomers/Al composite, the response temperature peak of the composite was 301 ℃, suggesting an enhanced exothermal process. © 2021, Editorial Board of Chinese Journal of Energetic Materials. All right reserved.
引用
收藏
页码：1025 / 1030
页数：5
相关论文
共 30 条
  • [1] Vandenberg E J., Based cleavage of epichlorohydrin polymers, Journal of Polymer Science Part A‑Polymer Chemistry, 10, pp. 2903-2912, (1972)
  • [2] Luo Y J, Ge Z., Progress in the research into azide energetic binders, Fine Chemicals, 30, pp. 374-377, (2013)
  • [3] LIAO Lin-quan, ZHENG Ya, LI Ji-zhen, Review on synthesis, properties and applications of NIMMO and its polymer, Chinese Journal of Energetic Materials(Hanneng Cailiao), 19, 1, pp. 113-118, (2011)
  • [4] Selim K, Ozkar S, Yilmaz L., Thermal characterization of glycidyl azide polymer (GAP) and GAP‑based binders for composite propellants, Journal of Applied Polymer Science, 77, pp. 538-546, (2000)
  • [5] Boopathi S K, Hadjichristidis N, Gnanou Y, Et al., Direct access to poly(glycidyl azide) and its copolymers through anionic (co‑)polymerization of glycidyl azide, Nature Communications, 10, 1, pp. 293-301, (2019)
  • [6] Kawamoto A M, Holanda J A S, Barbieri U, Et al., Synthesis and characterization of glycidyl azide‑r‑(3, 3‑bis(azidomethyl)oxetane) copolymers, Propellants, Explosives, Pyrotechnics, 33, pp. 365-372, (2008)
  • [7] Soman R R, Agawane N T, Hazarika A, Sharma K J, Et al., Synthesis, characterization and thermal degradation of glycidyl azide polymer‑tetrahydrofuran (GAP‑THF) copolymer, Journal of Polymer Materials, 20, pp. 423-433, (2003)
  • [8] LV Yong, LUO Yun-jun, GE Zhen, Research development of energetic thermoplastic elastomers, New Chemical Materials, 36, 10, pp. 31-33, (2008)
  • [9] ZHAO Yi-bo, LUO Yun-jun, LI Xiao-meng, Et al., Synthesis and characterization of PBAMO/GAP tri‑block copolymer, Chinese Journal of Explosives & Propellants, 35, 2, pp. 58-61, (2012)
  • [10] ZHAO Yi-bo, LUO Yun-jun, ZHANG Chi, Performances of the binder film of BAMO‑r‑GAP copolymer/N100/IPDI curing system, Chinese Journal of Energetic Materials(Hanneng Cailiao), 21, 1, pp. 64-67, (2013)
123