用静电纺丝法制备可交联高性能聚合物纳米纤维

为解决高性能聚合物作为模板材料在烧蚀过程中会出现黏连或者成膜的问题，采用亲核缩聚法制备了含有10%烯丙基的羧基聚芳醚酮聚合物，利用静电纺丝法将该聚合物制成负载有镉离子的含羧基聚芳醚酮纳米纤维，将得到的纤维在紫外光的照射下交联固化，通过烧蚀得到氧化镉纳米纤维。通过扫描电子显微镜照片可看到：交联后的氧化镉纳米纤维形貌保持良好，而未经交联的模板煅烧后得到的纤维出现严重的熔融变形，甚至连成薄膜。纤维形态测试结果表明，经过交联后的聚合物复合纤维煅烧后得到的氧化镉纳米纤维结构保持完好，且直径比较均匀。可交联羧基聚芳醚酮在进行交联固化后能够保持良好的形貌特征，起到了很好的模板作用。

Preparation of crosslinking and high performance polymers

The high performance polymer used as a template material would appear adhesion or film in the process of ablation. Poly(aryl ether ketone) containing 90% carboxyl and 10% allyl（PEEK-PCA-90）were prepared by nucleophilic polycondensation, then the PEEK-PCA-90 nanofibers containing chromium ion (PEEK-PCA-90/Cd2+) nanofibers were prepared by electrostatic spinning, the PEEK-PCA-90/Cd2+nanofibers were finally crosslinked under UV irradiation. Finally, the chrome oxide nanofibers were obtained by ablation. After crosslinking, the shape of nanofibers keep good in the process of calcination, there will be no collapse. The molten inorganic particles, which were prepared by the template without crosslinking, appeared severe deformation after calcination, and even became film. Fiber morphology test results showed that CdO nanofiberswere obtainedafter calcination of cross-linked polymer composite fibers, and the structure of CdO nanofibers remains intact, the diameter is uniform. Crosslinked carboxyl poly (aryl ether ketone) can keep good appearance characteristics,playing a very good role of template.