苯并噁嗪树脂的合成及在形状记忆聚合物中的应用研究进展

苯并噁嗪树脂作为一类新型的热固性树脂，具有分子设计性强、阻燃性能和耐腐蚀性能优异、固化时不需要强酸、无小分子放出等优点，在航空、建筑、电子等领域获得了广泛应用。本文主要介绍了苯并噁嗪单体的合成方法（溶剂法、无溶剂法和悬浮法）、降低苯并噁嗪开环聚合温度的方法（合成具有特殊基团的苯并噁嗪单体、添加催化剂）及苯并噁嗪树脂在形状记忆聚合物中的应用（与其他聚合物混合，纯苯并噁嗪化学改性），对苯并噁嗪形状记忆聚合物目前存在的问题进行了概述并对苯并噁嗪形状记忆聚合物的发展前景做出了展望。

Synthesis of Benzoxazine Resin and Its Application in Shape Memory Polymers

Benzoxazine resins, a new type of thermosetting resin, are featured by strong molecular design ability, flame retardancy, high corrosion resistance, independence on strong acids during thermosetting, and no release of small molecules and thus they are widely used in aviation, architecture, electronics and other fields. In this study, the methods of benzoxazine monomer(solvent method, solvent-free method and suspension method), the synthesis methods to reduce the ring opening polymerization temperature of benzoxazine(synthesis of benzoxazines with special groups and addition of catalysts), and the application of benzoxazine resins into shape memory polymers were introduced(mixed with other polymers and chemical modification of benzoxazine). Moreover, the existing problems concerning benzoxazine shape memory polymers were summarized. Finally, the prospects about the development of benzoxazine resins in shape memory polymers were proposed.