以对硝基苯甲酸为原料,通过酰氯化、酰化、还原反应成功合成了4,4’-二氨基苯酰替苯胺（DBN）,DBN分别和3,3’,4,4’-联苯四酸二酐（BPDA）、均苯四甲酸二酐（PMDA）通过两步法缩聚制备出聚酰亚胺薄膜,用红外（FT-IR）,差示扫描量热仪（DSC）和热重分析（TGA）,拉伸测试表征其结构和性能,结果表明,成功合成了含有酰胺键的聚酰亚胺薄膜,并且酰胺键的N-H分别和酰亚胺环中的C-N和C=O形成了氢键。将其与4,4’-二氨基二苯醚（ODA）聚酰亚胺薄膜相比,对应二酐（BPDA和PMDA）分别和DBN制备的聚酰亚胺薄膜表现出了优异的热性能和耐溶剂性,尤其是拉伸强度有了显著的提高。
By means of series reactions 4, 4 ＇-diaminobenzanilide （DBN） was successfully synthesized from paranitrobenzoie acid. Amide bond-containing polyimide films（ABPF） were prepared via a two-step polycondensation procedure of DBN with 3, 3＇, 4, 4 ＇-biphenyl-tetracarboxylic dianhydride and pyromellitic dianhydride. Fourier transform infrared spectrum （FT-IR）, confirmed that hydrogen band existed between H and C= O or C - N in the films. The properties of films were studied by thermogravimetric analysis （TGA）, differential scanning calorimetry （DSC） and tensile test. Compared with the polyimide films obtained from 4, 4＇-oxydianiline （ODA）, the ABPF shows excellent thermal stability, very good solvent-resistance properties and an enormous improvement of the tensile strength.
参考文献
| [1] | 梁生宪.P84纤维和普抗纤维性能介绍及应用[J].玻璃纤维,2002(02):24-24. |
| [2] | Xiangyang Liu;Guanqun Gao;Liang Dong;Guangdou Ye;Yi Gu .Correlation between hydrogen-bonding interaction and mechanical properties of polyimide fibers[J].Polymers for advanced technologies,2009(4):362-366. |
| [3] | Georgeta Maria simu;Seriu Adrian Chicu;Walter Schmidt .Direct Dyes Derived from 4,4'-Diaminobenzanilide Synthesis,Characterization and Toxicity Evaluation of a Disazo Symmetric Direct Dye[J].Turkish journal of chemistry,2004(5):579-585. |
| [4] | Yan Wang;Suat Hong Goh;Tai-Shung Chung .Miscibility study of Torlon polyamide-imide with Matrimid 5218 polyimide and polybenzimidazole[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(10):2901-2909. |
| [5] | 冯华君,张玉梅,顾有伟.聚酰亚胺薄膜拉伸工艺的研究[J].工程塑料应用,2001(03):16-18. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%