Copolymers of epichlorohydrin (ECH) and 1,2-epoxyhexane (EpH) have been synthesized via cationic ring-opening polymerization using BF(3)xTHF as a catalyst. Structures of the resulting polymers have been confirmed by IR and NMR spectroscopy and GPC. In a subsequent reaction with NaN3 in DMSO, the halogenated precursors were completely azidated, which was confirmed by the same spectroscopic methods. The introduced pendant n-butyl chains act as an internal plasticizer by lowering the glass transition temperature (T-g) of the copolymers compared to the reference compound glycidyl azide polymer (GAP). Compared to GAP in a similar molecular weight range, the copolymers also showed reduced viscosity. These properties make the described copolymers interesting candidates for use as energetic binders in cast-cure applications.

中文翻译：

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基于 GAP 和 1,2-环氧己烷的共聚物作为用于高能粘合剂系统的有前景的预聚物

使用 BF(3)xTHF 作为催化剂，通过阳离子开环聚合合成了环氧氯丙烷 (ECH) 和 1,2-环氧己烷 (EpH) 的共聚物。所得聚合物的结构已通过 IR 和 NMR 光谱以及 GPC 确认。在随后与 DMSO 中的 NaN3 反应中，卤化前体完全叠氮化，这通过相同的光谱方法得到证实。与参考化合物缩水甘油基叠氮化物聚合物 (GAP) 相比，引入的正丁基侧链通过降低共聚物的玻璃化转变温度 (Tg) 充当内部增塑剂。与类似分子量范围内的 GAP 相比，共聚物还表现出降低的粘度。这些特性使所描述的共聚物成为在浇铸固化应用中用作高能粘合剂的有趣候选者。