Phenylethynyl-terminated oligoimides based on bis(p-aminophenoxy)dimethyl silane: Effect of siloxane structure on processability and thermal stability
文献类型：期刊论文
| 作者 | Liu, Yi; Mo, Song; He, Minhui; Zhai, Lei; Xu, Caihong; Fan, Lin |
| 刊名 | HIGH PERFORMANCE POLYMERS
 |
| 出版日期 | 2019-08-01 |
| 卷号 | 31期号:6页码:651-661 |
| ISSN号 | 0954-0083 |
| DOI | 10.1177/0954008318780211 |
| 英文摘要 | A series of phenylethynyl-terminated oligoimides based on 2,3,3 ',4 '-biphenyltetracarboxylic dianhydride (a-BPDA), 2,2 '-bis(trifluoromethyl)benzidine (TFDB), and bis(p-aminophenoxy)dimethyl silane (APDS) with different siloxane content and various calculated molecular weights were synthesized. The effect of siloxane structure on the processability of oligoimides and the thermal stability of cured polyimides (PIs) was investigated. The results indicated that the oligoimides have lower melt viscosity and broader processing window with the incorporation of flexible siloxane segment. The thermal stability of the cured PIs can be significantly enhanced by high-temperature postcuring due to the oxidative cross-linking of siloxane. The polyimide PI-s1-15 exhibited good balance between processability and thermal stability with the minimum melt viscosity of 0.4 Pa center dot s at 325 degrees C and glass transition temperature as high as 470 degrees C after postcuring at 450 degrees C. The carbon fiber-reinforced composite T800/PI-s1-15 displayed excellent high-temperature performance, which gave the flexural strength and interlaminar shear strength of 703 and 33 MPa, respectively, when tested at the temperature as high as 450 degrees C. |
| 语种 | 英语 |
| WOS记录号 | WOS:000472768200005 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/82711]  |
| 专题 | 中国科学院化学研究所 |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yi,Mo, Song,He, Minhui,et al. Phenylethynyl-terminated oligoimides based on bis(p-aminophenoxy)dimethyl silane: Effect of siloxane structure on processability and thermal stability[J]. HIGH PERFORMANCE POLYMERS,2019,31(6):651-661. |
| APA | Liu, Yi,Mo, Song,He, Minhui,Zhai, Lei,Xu, Caihong,&Fan, Lin.(2019).Phenylethynyl-terminated oligoimides based on bis(p-aminophenoxy)dimethyl silane: Effect of siloxane structure on processability and thermal stability.HIGH PERFORMANCE POLYMERS,31(6),651-661. |
| MLA | Liu, Yi,et al."Phenylethynyl-terminated oligoimides based on bis(p-aminophenoxy)dimethyl silane: Effect of siloxane structure on processability and thermal stability".HIGH PERFORMANCE POLYMERS 31.6(2019):651-661. |
入库方式： OAI收割
来源：化学研究所
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