端炔基环氧乙烷-四氢呋喃共聚醚合成及固化

推进技术 ›› 2012, Vol. 33 ›› Issue (5): 799-803.

端炔基环氧乙烷-四氢呋喃共聚醚合成及固化

曲正阳,翟进贤,张晗昱,杨荣杰

北京理工大学材料学院,北京 100081;北京理工大学材料学院,北京 100081;北京理工大学材料学院,北京 100081;北京理工大学材料学院,北京 100081

发布日期:2021-08-15
作者简介:曲正阳(1984—) , 男, 博士生,研究领域为固体推进剂黏合剂。E-mail:qhl_42798@sina.com

Synthesis and Curing Research of Propargyl-Terminated PET

School of Materials, Beijing Institute of Technology, Beijing 100081, China;School of Materials, Beijing Institute of Technology, Beijing 100081, China;School of Materials, Beijing Institute of Technology, Beijing 100081, China;School of Materials, Beijing Institute of Technology, Beijing 100081, China

Published:2021-08-15

摘要/Abstract

摘要： 为改善传统的复合推进剂端羟基黏合剂-异氰酸酯固化体系对水敏感的缺点,对端羟基聚醚黏合剂进行端基改性,将羟基转变为丙炔基,并利用点击化学原理,与多叠氮化合物组成新的推进剂黏合剂固化体系。以分子量约为4000的环氧乙烷-四氢呋喃共聚醚(PET4000)为原料,对其进行端炔基化,得到分子量约4000的端炔基PET共聚醚(C≡PET4000),在特定催化剂的作用下,与官能度为3.8的某叠氮类固化剂组成固化体系,制备不同催化剂含量和固化参数的胶片,研究了其力学性能。结果表明,端炔基聚醚-叠氮固化剂的黏合剂体系与传统的羟基黏合剂-异氰酸酯固化体系的力学性能相似。 

关键词: 端羟基聚醚;端炔基聚醚;叠氮化合物;点击化学

Abstract: The hydroxy-terminated binder and multi-isocyanate curing system of traditional composite propellant is water-sensitive. To overcome this shortcoming, the hydroxyl groups are modified into propargyl groups which are used together with multi-azide to form a new curing system according to the click chemistry reaction.Molecular weight of 4000 ethylene oxide-tetrahydrofuran copolyether (PET4000) was used as a raw material. After being end-modified, propargyl-terminated PET4000 (C≡PET4000) was synthetized. Using a specific catalyst, C≡PET4000 was used to form a new curing system together with a curing agent of azide whose functionality is 3.8. The elastomers of different catalyst concentration and curing parameters were produced, whose mechanical properties were studied. It turns out that these properties are similar to the traditional ones.

Key words: PET4000; C≡PET4000; Azide; Click chemistry

曲正阳,翟进贤,张晗昱,杨荣杰. 端炔基环氧乙烷-四氢呋喃共聚醚合成及固化[J]. 推进技术, 2012, 33(5): 799-803.

参考文献

[2] Keicher T, Werner K, Siegfried E, et al.Isocyanate-Free Curing of Glycidyl Azide Polymer (GAP) with Bis-Propargyl-Succinate (II)[J].Propellants Explos.Pyrotech.9,4:210-217.
[3] 李娟, 段明, 张烈辉,等.点击化学及其应用[J].化学进展, 7,9(11):1754-1760.
[4] Huisgen R.1,3-Dipolar Cycloadditions.Past and Future[J].Angewandte Chemie,3,2:565-598.
[5] Kolb H C, Finn M G, Sharpless K B.Click Chemistry:Diverse Chemical Function From a Few Good Reactions[J].Angewandte Chemie,1,0, (11), 2004-2021.
[6] 王景梅, 李凌君, 张贵生.1,2,3-三唑化合物的合成研究进展[J].有机化学, 9,9(1):13-19.
[7] Albert Padwa.1,3-Dipolar Cycloaddition Chemistry[M].New York:John Wiley, 1984:1-176.
[8] Binauld S, Fernande B, Thierry H, et al.Kinetic Study of Copper(I)-Catalyzed Click Chemistry Step-Growth Polymeri-zation[J].Journal of Polymer Science:Part A:Polymer Chemistry, 2008(46):5506-5517.
[9] Georgina K Such, Elvira Tjipto, Almar Postma, et al.Ultrathin, Responsive Polymer Click Capsules[J].Nano Letters, 7,7:1706-1710.
[10] James P Collman, Neal K Devaraj, Christopher E D.Chidsey.“Clicking” Functionality onto Electrode Surfaces[J]. Langmuir, 4,0:1051-1053.
[11] James P Collman, Neal K Devaraj, Todd P A Eberspacher, et al.Mixed Azide-Terminated Monolayers:A Platform for Modifying Electrode Surfaces[J].Langmuir,6,2:2457-2464.
[12] Pak Z P.Some Ways to Higher Environmental Safety of Solid Rocket Propellant.[C].Monterey:29th Joint Propulsion Conference and Exhibit.1993.
[13] Katritzky A R, Meher N K, Hankl S, et al.Preparation and Characterization of 1,2,3-Triazole-Cured Polymers from Endcapped Azides and Alkynes[J].Journal of Polymer Science:Part A:Polymer Chemistry, 2008(46):238-256.
[14] Menke K, Heintz T, Schweikert W, et al.Formulation and Properties of ADN/GAP Propellants[J].Propellants Explos.Pyrotech.9,4:218-230.
[15] 王晓红, 冯增国.有多官能度炔烃与叠氮化合物制备交联弹性体[J].高分子材料科学与工程, 1,7(3):91-94.
[16] 曲正阳, 翟进贤, 张晗昱,等.端炔基聚乙二醇的合成及固化[J].火炸药学报, 0,3(6) :61-64.