Preparation of aromatic polyamide with ultra-high intrinsic breakdown strength via layered stacking structure induced by coplanar monomer
文献类型：期刊论文
| 作者 | Li, Yongjiu2; Liang, Qianqian3; Xu, Ruopei2; Li, Xin2; Zhang, Dajie2; Zhuang, Yongbing4; Luo, Longbo2; Lv, Junwei2; Zhai, Wen1; Liu, Xiangyang2 |
| 刊名 | POLYMER
 |
| 出版日期 | 2022-08-22 |
| 卷号 | 255页码:11 |
| 关键词 | Aromatic polyamide Intrinsic breakdown strength Layered stacking structure Coplanar monomer Intramolecular hydrogen bond |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2022.125170 |
| 英文摘要 | Dielectric polymers with high breakdown strength (Eb) and high retention rate of breakdown strength at elevated temperature have important application potential in advanced electrical insulation devices. Herein, the aromatic heterocyclic diamine monomer, 5-amino-2-(2-hydroxy-4-aminobenzene)-benzoxazole (HBOA), was synthesized. Theoretical calculation and single crystal date demonstrated fully the formation of intramolecular H-bond of OH?N]C between benzoxazole and benzene ring in HBOA, which endows the monomer a coplanar geometry. Moreover, the aromatic polyamide films were prepared by polycondensation of HBOA, and the in -plane orientation of films increases with increasing the coplanar HBOA content, which reduces the orientation confusion and cavity of chains packing. When the HBOA content is over 70%, the films exhibit dense-layered stacking structure with high crystallinity. It is found that the dense-layered stacking structure can prevent the films breakdown and failure effectively, which endows the homopolymerization (HBOA-100) film with Eb of 771 kV/mm. Moreover, the Eb of the HBOA-100 film is still as high as 634 kV/mm at 150 ?C, and its retention rate of Eb reaches 82% in high temperature environment. In addition, tensile strength of the HBOA-100 film is nearly 343 MPa, glass transition temperature is about 334 ?C and the thermal stability up to 487 ?C. |
| WOS关键词 | TEMPERATURE DIELECTRIC MATERIALS ; BOND-ASSISTED PLANARIZATION ; POLYIMIDE COPOLYMER FIBERS ; ENERGY-STORAGE PERFORMANCE ; NANOFIBERS ; POLYMERS ; DENSITY |
| 资助项目 | National Natural Science Foundation of China[51633004] ; National Natural Science Foundation of China[52173008] |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000843042800002 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54478]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhai, Wen; Liu, Xiangyang |
| 作者单位 | 1.Shandong Nonmet Mat Inst, Jinan 250031, Peoples R China 2.Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China 3.Sichuan EM Technol Co Ltd, Natl Insulating Mat Engn Res Ctr, Mianyang 621000, Peoples R China 4.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yongjiu,Liang, Qianqian,Xu, Ruopei,et al. Preparation of aromatic polyamide with ultra-high intrinsic breakdown strength via layered stacking structure induced by coplanar monomer[J]. POLYMER,2022,255:11. |
| APA | Li, Yongjiu.,Liang, Qianqian.,Xu, Ruopei.,Li, Xin.,Zhang, Dajie.,...&Liu, Xiangyang.(2022).Preparation of aromatic polyamide with ultra-high intrinsic breakdown strength via layered stacking structure induced by coplanar monomer.POLYMER,255,11. |
| MLA | Li, Yongjiu,et al."Preparation of aromatic polyamide with ultra-high intrinsic breakdown strength via layered stacking structure induced by coplanar monomer".POLYMER 255(2022):11. |
入库方式： OAI收割
来源：过程工程研究所
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