Synthesis and properties of new pyridine-bridged poly(ether-imide)s based on 4-(4-trifluoromethylphenyl)-2,6-bis[4-(4-aminophenoxy)phenyl]pyridine
文献类型：期刊论文
| 作者 | Wang XL(王晓龙)
|
| 刊名 | Journal of Fluorine Chemistry
 |
| 出版日期 | 2008 |
| 卷号 | 129页码:56-63 |
| 关键词 | Fluorinated polyimides Polyimides Diamine monomer Pyridine moieties |
| ISSN号 | 0022-1139 |
| 通讯作者 | 李彦峰 |
| 中文摘要 | A novel pyridine-containing aromatic diamine monomer, 4-(4-trifluoromethylphenyl)-2,6-bis[4-(4-aminophenoxy)phenyl]pyridine (FAPP), was synthesized via the modified Chichibabin pyridine synthesis of 4-(4-nitrophenoxy)-acetophenone with 4-trifluoromethyl-benzaldehyde, followed by a catalytic reduction. A series of fluorinated pyridine-bridged aromatic poly(ether-imide)s were prepared from the resulting diamine monomer with various aromatic dianhydrides via a conventional two-step process. The resulting polyimides exhibited good solubility in aprotic amide solvents and m-cresol, such as N,N-dimethylacetamide, N-methyl-2-pyrrolidone, and m-cresol, etc., which possessed the inherent viscosities of 0.76–0.91 dL/g. Strong and flexible poly(ether-imide) films were obtained, which showed excellent thermal properties with the glass transition temperatures of 268–353 8C, the temperature at 5% weight loss of 547–595 8C, and the residue at 700 8C of 65–74%in nitrogen, good mechanical properties with the tensile strengths of 87.6–104.2 MPa and elongations at breakage of 8.9–12.6%, and good optical transparency with the cut-off wavelengths of 357–380 nm, as well as low dielectric constants in the range of 2.49–3.04 at 1 MHz and low water uptake 0.43–0.69%. Furthermore, the resulted polyimides derived from FAPP were compared with non-fluorinated analogous polyimides and fluorinated analogous polyimides with trifluoromethyl groups in different positions, and the effects of substituents were also investigated and discussed. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the State Key Laboratory of Applied Organic Chemistry |
| 语种 | 英语 |
| 公开日期 | 2013-03-28 |
| 源URL | [http://210.77.64.217/handle/362003/2632]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang XL. Synthesis and properties of new pyridine-bridged poly(ether-imide)s based on 4-(4-trifluoromethylphenyl)-2,6-bis[4-(4-aminophenoxy)phenyl]pyridine[J]. Journal of Fluorine Chemistry,2008,129:56-63. |
| APA | 王晓龙.(2008).Synthesis and properties of new pyridine-bridged poly(ether-imide)s based on 4-(4-trifluoromethylphenyl)-2,6-bis[4-(4-aminophenoxy)phenyl]pyridine.Journal of Fluorine Chemistry,129,56-63. |
| MLA | 王晓龙."Synthesis and properties of new pyridine-bridged poly(ether-imide)s based on 4-(4-trifluoromethylphenyl)-2,6-bis[4-(4-aminophenoxy)phenyl]pyridine".Journal of Fluorine Chemistry 129(2008):56-63. |
入库方式： OAI收割
来源：兰州化学物理研究所
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