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含能材料  2013 

端羟基P(GA-b-AMMO)的合成与表征

Keywords: 高分子化学,环氧氯丙烷,3-叠氮甲基-3-甲基氧丁环,可控聚合

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Abstract:

以1,3,5-三羟乙基异氰脲酸酯(THEIC)为起始剂,经环氧氯丙烷开环聚合和叠氮化取代等反应首先制成带有氮杂环结构的数均相对分子质量(Mn)为2500~3000的三官能度叠氮缩水甘油醚(TGAP),然后以TGAP为大分子起始剂,引发3-叠氮甲基-3-甲基氧杂环丁烷(AMMO)进行开环聚合制备出一种新型叠氮粘合剂P(GA-b-AMMO)。采用红外、核磁共振(1HNMR和13CNMR)和凝胶渗透色谱(GPC)对P(GA-b-AMMO)的分子结构、组成和Mn进行了表征。考察了聚合温度及投料比等因素对聚合反应的影响,确定了该体系下聚合的优化条件为:n(BF3·OEt2)/n(TGAP)/n(AMMO)=1.35/1/12~16,聚合温度为0~3℃。P(GA-b-AMMO)的Mn、羟值(OH)测试结果均表明在该优化条件下聚合较为可控,产品总收率≥80.0%,官能度≥2.70,Mn达到4000~4400且与相应理论值均较为接近。力学性能测试表明与均聚醚TGAP相比,P(GA-b-AMMO)表现出较好的力学性能,以异氟尔酮二异氰酸酯(IPDI)为固化剂,其纯胶片常温力学强度为2.04MPa,而常温延伸率可达261%,较低分子量的TGAP提高约2倍。

References

[1]  卢先明, 甘孝贤, 邢颖, 等.端羟基聚环氧氯丙烷与叠氮聚醚的后处理研究[J].含能材料, 2008,16(6): 682-685.LU Xian-ming, GAN Xiao-xian, XING Ying, et al.Study of Post-Processing for hydroxy terminal polyepoxy chloropropane and Azido Polyethers[J].Chinese Journal of Energetic Materials(Hanneng Cailiao), 2008,16(6): 682-685.
[2]  TANG Wei-yi, HUANG Yan-gen, QING Feng-ling.Synthesis and characterization of fluorinated polyacrylate graft copolymer capable as water and oil repellent finishing agents[J].J Appl Polym Sci, 2011,119(1): 84-94.
[3]  朱广超, 王贵友, 胡春圃.交联密度对脂肪族聚氨酯弹性体结构与性能的影响[J].高分子学报, 2011 (3): 274-280.ZHU Guang-chao, WANG Gui-you, HU Chun-pu.Effect of crosslink density on the structures and properties of aliphatic polyurethane elastomer[J].Acta Polymerica Sinica, 2011 (3): 274-280.
[4]  龚士杰.GAP推进剂综述[J].推进技术, 1991,14(1): 67-70.GONG Shi-jie.Progress of GAP propellants[J].Journal of Propulsion Technology, 1991,14(1): 67-70.
[5]  宋晓庆,周集义,王文浩,等.聚叠氮缩水甘油醚改性研究进展[J].含能材料,2007,15(4):425-430.SONG Xiao-qing,ZHOU Ji-yi,WANG Wen-hao,et al.Research progress of glycidyl azide polymers modification[J].Chinese Journal of Energetic Materials(Hanneng Cailiao),2007,15(4):425-430.
[6]  Murali M Y, Padmanabha R M, Mohana R K.Synthesis, spectral and DSC analysis of glycidyl azide polymers containing different Initiating diol unit[J].J Appl Polym Sci, 2004,93(5): 2157-2163.
[7]  Murali M Y, Mani Y, Mohana R K.Synthesis of azido polymers as potential energetic propellant binders[J].Des Monomers Polym, 2006,9(3): 201-236.
[8]  Kawamoto A M, Holanda J A S, Barbieri U, et al.Synthesis and characterization of glycidyl azide-r-(3,3-bis(azidomethyl)oxetane) copolymers[J].Propellant, Explos Pyrotech, 2008,33(5): 365-372.
[9]  Barbieri U, Polacco G, Paesano E, et al.Low risk synthesis of energetic poly(3-azidomethyl-3-methyloxetane) from tosylated precursors[J].Propellant.Explos Pyrotech, 2006,31(5): 369-375.
[10]  Barbieri U, Polacco G, Keicher T, et al.Preliminary characterization of propellants based on p(GA/BAMO) and pammo binders[J].Propellant, Explos Pyrotech, 2009,34(5): 427-435.
[11]  李娜, 甘孝贤, 邢颖, 等.叠氮粘合剂PAMMO的合成与性能研究[J].含能材料, 2007,15(1): 53-55.LI Na, GAN Xiao-xian, XING Ying, et al.Synthesis and property of energetic binder pAMMO[J].Chinese Journal of Energetic Materials(Hanneng Cailiao), 2007,15(1): 53-55.
[12]  卢先明, 甘孝贤, 邢颖, 等.端羟基聚环氧氯丙烷醚合成的可控性研究[J].聚氨酯工业, 2009,24(5): 15-18.LU Xian-ming, GAN Xiao-xian, XING Ying, et al.Controllability study of controllable polymerization of epoxy chloropropane with hydroxyl terminated[J].Polyurethane Industry, 2009,24(5): 15-18.
[13]  QIU Shao-jun, GAN Xiao-xian, GAO Chao, et al.Hydrogen bond effect of azido polyurethane elastomer by dynamic mechanical analysis[J].J Polym Sci Part B: Polym Phys, 2006,44(22), 2841-2851.
[14]  Biedron T, Kubisa P, Penczek S.Polyepichlorohydrin diols free of cyclics: synthesis and characterization[J].J Polym Sci Part A: Polym Chem, 1991,29(5), 619-628.

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