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首页> 外文期刊>Journal of Applied Polymer Science >Design of an ammonium dinitramide compatible polymer matrix
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Design of an ammonium dinitramide compatible polymer matrix

机译：二硝酰胺铵相容性聚合物基体的设计

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To enable future environmentally friendly access to space by means of solid rocket propulsion a viable replacement to the toxic ammonium perchlorate (AP) oxidizer is needed. Ammonium dinitramide (ADN) holds great promise as a green replacement. Unfortunately compatibility issues with many polymer binder systems have hampered the development of ADN-based formulations. Herein we present proof-of-concept of a polymer cure system based on hyperbranched copolymers of 3-ethyl-3-(hydroxymethyl)oxetane (TMPO) and tetrahydrofuran (THF). The partly alkyne-functionalized macromolecules were synthesized in a one-pot procedure. TMPO and THF are found to polymerize in exact ratios, indicating a kinetically controlled buildup of nonrandom composition copolymers. Several of the materials show excellent compatibility with ADN, and rapid curing of the energetic polyglycidyl azide polymer (GAP) have been demonstrated through 1,3-dipolar cycloaddition at 75°C.
机译：为了通过固体火箭推进器实现未来对环境的友好进入太空，需要有毒的高氯酸铵（AP）氧化剂的可行替代品。二硝酰胺铵（ADN）有望作为绿色替代品。不幸的是，许多聚合物粘合剂系统的相容性问题阻碍了基于ADN的配方的开发。本文中，我们介绍了基于3-乙基-3-（羟甲基）氧杂环丁烷（TMPO）和四氢呋喃（THF）的超支化共聚物的聚合物固化体系的概念验证。用一锅法合成部分炔烃官能化的大分子。发现TMPO和THF以精确的比例聚合，表明动力学控制的非随机组成共聚物的形成。几种材料显示出与ADN的优异相容性，并且高能聚缩水甘油叠氮化物聚合物（GAP）的快速固化已通过在75°C下进行1,3-偶极环加成得到证明。

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