Synthesis and characterization of highly optical transparent and low dielectric constant fluorinated polyimides
文献类型：期刊论文
| 作者 | Tao, Liming; Yang, Haixia; Liu, Jingang; Fan, Lin; Yang, Shiyong |
| 刊名 | POLYMER
 |
| 出版日期 | 2009-11-27 |
| 卷号 | 50期号:25页码:6009-6018 |
| 关键词 | Fluorinated Polyimides High Transparency Dielectric Properties |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2009.10.022 |
| 英文摘要 | Multitrifluoromethyl-substituted aromatic diamines, 1,1-bis[4-(4'-amino-2'-trifluoromethylphenoxy)phenyl]-1-(3 ''-trifluoromethylphenyl)-2,2,2-trifluoroethane (12FDA) and 1,1-bis[4-(4'-amino-2'-trifluoromethylphenoxy)phenyl]-1-[3 '',5 ''-bis (trifluoromethyl)phenyl]-2,2,2-trifluoroethane (15FDA) were synthesized, which were employed to react with various aromatic dianhydrides to yield a series of highly fluorinated polyimides. The fluorinated polyimides synthesized showed great solubility with inherent viscosities of 0.47-0.69 dL/g. The strong and tough polyimide films exhibited good thermal stability with the glass transition temperature (T(g)) of 209-239 degrees C and outstanding mechanical properties with the tensile strengths of 88-111 MPa and tensile modulus of 2.65-3.17 GPa. Dielectric constants of as low as 2.49 and low moisture absorptions (0.17-0.66%) were measured. The fluorinated polyimide films (710 pm in thickness) also showed highly optical transparency with light transmittance at 450 nm of as high as 97.0% and cutoff wavelength of as low as 298 nm. The average refractive indices and birefringence of the fluorinated polyimide films were measured in the range of 1.5060-1.5622 and 0.0036-0.0095, respectively. PI-7 and PI-8 exhibited low light-absorption in the near-infrared region, especially at the optocommunication wavelength of 1310 run and 1550 run. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272284100018 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66993]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Haixia |
| 作者单位 | Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Liming,Yang, Haixia,Liu, Jingang,et al. Synthesis and characterization of highly optical transparent and low dielectric constant fluorinated polyimides[J]. POLYMER,2009,50(25):6009-6018. |
| APA | Tao, Liming,Yang, Haixia,Liu, Jingang,Fan, Lin,&Yang, Shiyong.(2009).Synthesis and characterization of highly optical transparent and low dielectric constant fluorinated polyimides.POLYMER,50(25),6009-6018. |
| MLA | Tao, Liming,et al."Synthesis and characterization of highly optical transparent and low dielectric constant fluorinated polyimides".POLYMER 50.25(2009):6009-6018. |
入库方式： OAI收割
来源：化学研究所
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