Synthesis and properties of soluble polyimides based on isomeric ditrifluoromethyl substituted 1,4-bis(4-aminophenoxy)benzene
文献类型：期刊论文
| 作者 | Qiu ZM ; Wang JH ; Zhang QY ; Zhang SB ; Ding MX ; Gao LX |
| 刊名 | polymer
 |
| 出版日期 | 2006 |
| 卷号 | 47期号:26页码:8444-8452 |
| 关键词 | GAS-TRANSPORT PROPERTIES RIGID-ROD POLYAMIDES ORGANOSOLUBLE POLYIMIDES FLUORINATED POLYIMIDES AROMATIC POLYIMIDES DIANHYDRIDE BEARING BULKY COLORLESS BIPHENYL |
| ISSN号 | 0032-3861 |
| 通讯作者 | zhang sb |
| 中文摘要 | a new fluorinated diamine monomer, [1,4-bis(4-amino-3-trifluoromethylphenoxy)benzene (2)], and a known isomeric analog 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene (3) were synthesized. a series of organosoluble polyimides ia-d and iia were prepared from the diamines (2, 3) and dianhydrides (a-d) by a high-temperature one-step method. the effects of the trifluoromethyl substituents on the properties of polyimides were evaluated through the study of their soluble, thermal, optical, and gas permeability properties. polyimides (ia-d) had glass transition temperatures between 229 and 279 degrees c, and the temperatures at 5% weight loss ranged from 510 to 533 degrees c under nitrogen. these polyimides could be cast into flexible and tough membranes from dmac solutions. the membranes had tensile strengths in the range of 137-169 mpa, tensile modulus in the range of 1.6-2.2 gpa and elongations at break from 11% to 14%. the polyimide la with trifluoromethyl groups ortho to the imide nitrogen exhibited enhanced gas permeability, solubility, transparency, and thermal stability compared with the isomeric polyimide iia with the cf3 group meta to the imide nitrogen. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000243044400007 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16217]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Qiu ZM,Wang JH,Zhang QY,et al. Synthesis and properties of soluble polyimides based on isomeric ditrifluoromethyl substituted 1,4-bis(4-aminophenoxy)benzene[J]. polymer,2006,47(26):8444-8452. |
| APA | Qiu ZM,Wang JH,Zhang QY,Zhang SB,Ding MX,&Gao LX.(2006).Synthesis and properties of soluble polyimides based on isomeric ditrifluoromethyl substituted 1,4-bis(4-aminophenoxy)benzene.polymer,47(26),8444-8452. |
| MLA | Qiu ZM,et al."Synthesis and properties of soluble polyimides based on isomeric ditrifluoromethyl substituted 1,4-bis(4-aminophenoxy)benzene".polymer 47.26(2006):8444-8452. |
入库方式： OAI收割
来源：长春应用化学研究所
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