Processable, high T-g polyimides from unsymmetrical diamines containing 4-phenoxy aniline and benzimidazole moieties
文献类型：期刊论文
| 作者 | Mushtaq, Nafeesa; Fang, Xingzhong; Sidra, Lala Rukh; Chen, Guofei; Li, Cuiyun; Ma, Kai |
| 刊名 | POLYMER
 |
| 出版日期 | 2018 |
| 卷号 | 148页码:228-238 |
| 关键词 | Trifluoromethyl Pendent Group Soluble Polyimides Poly(Ether Imide)s Copolyimides Ether |
| 英文摘要 | Two novel unsymmetric diamine isomers, 6-amino-2-(4-(4-aminophenoxy)phenyl)-1H-benzimidazole (3p) and 6-amino-2-(3-(4-aminophenoxy)phenyl)-1H-benzimidazole (3 m), were synthesized and employed to react with several aromatic dianhydrides to yield two new series of poly (benzimidazole imide)s (PBIPIs), PI-4 (a-e) and PI-5 (c-e) through two-step and one step polymerization method, respectively. The effect of chain isomerism on molecular packing and physical properties of PBIPIs is investigated. Both series exhibited excellent thermal stability (T-5%= 503-559 degrees C), high T-g values (276 -383 degrees C) and good mechanical properties (tensile strengths of 98-151 MPa and tensile moduli of 3.5 -5.2 GPa). The PI-5 (c-e) showed high solubility compared to PI-4 (a-e) series. Such improved solubility attributed to the flexible ether connecting groups with non-coplanarity. Furthermore, controlled molecular weight (Mw) polymer PI-5e-PA derived from 3 m, demonstrated good solution and melt processability. (C) 2018 Published by Elsevier Ltd. |
| 学科主题 | Materials Science ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17307]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Mushtaq, Nafeesa,Fang, Xingzhong,Sidra, Lala Rukh,et al. Processable, high T-g polyimides from unsymmetrical diamines containing 4-phenoxy aniline and benzimidazole moieties[J]. POLYMER,2018,148:228-238. |
| APA | Mushtaq, Nafeesa,Fang, Xingzhong,Sidra, Lala Rukh,Chen, Guofei,Li, Cuiyun,&Ma, Kai.(2018).Processable, high T-g polyimides from unsymmetrical diamines containing 4-phenoxy aniline and benzimidazole moieties.POLYMER,148,228-238. |
| MLA | Mushtaq, Nafeesa,et al."Processable, high T-g polyimides from unsymmetrical diamines containing 4-phenoxy aniline and benzimidazole moieties".POLYMER 148(2018):228-238. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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