Syntheses and properties of polyimides derived from diamines containing 2,5-disubstituted pyridine group
文献类型：期刊论文
| 作者 | Xia, Aixiang; Guo, Haiquan; Qiu, Xuepeng; Ding, Mengxian; Gao, Lianxun |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2006-10-15 |
| 卷号 | 102期号:2页码:1844-1851 |
| 关键词 | Heteroaromatic Polyimides Pyridine Thermal Stability Mechanical Properties |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.24083 |
| 英文摘要 | A Series of novel homo- and copolyimides containing pyridine units were prepared from the heteroaromatic diamines, 2,5-bis (4-aminophenyl) pyridine and 2-(4aminophenyl)-5-aminopyridine, with pyromelltic dianhydride (PMDA), and 3,3',4,4'-biphenyl tertracarboxylic dianhydride (BPDA) via a conventional two-step thermal imidizaton method. The poly(amic acid) precursors have inherent viscosities of 1.60-9.64 dL/g (c = 0.5 g/dL in DMAC, 30 degrees C) and all of them can be cast and thermally converted into flexible and tough polyimide films. All of the polyimides show excellent thermal stability and mechanical properties. The polyimides have 10% weight loss temperature in the range of 548-598 degrees C in air. The glass transition temperatures of the PMDA-based samples are in the range of 395-438 degrees C, while the BPDA-based polyimides show two glass transition temperatures (T(g)1 and T(g)2), ranging from 268 to 353 degrees C and from 395 to 418 degrees C, respectively. The flexible films possess tensile modulus in the range of 3.42-6.39 GPa, strength in the range of 112-363 MPa and an elongation at break in the range of 1.2-69%. The strong reflection peaks in the wide-angle X-ray diffraction patterns indicate that the polyimides have a high packing density and crystallinity. The polymer films are insoluble in common organic solvents exhibiting high chemical resistance. (c) 2006 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000240207100120 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60193]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gao, Lianxun |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, Aixiang,Guo, Haiquan,Qiu, Xuepeng,et al. Syntheses and properties of polyimides derived from diamines containing 2,5-disubstituted pyridine group[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2006,102(2):1844-1851. |
| APA | Xia, Aixiang,Guo, Haiquan,Qiu, Xuepeng,Ding, Mengxian,&Gao, Lianxun.(2006).Syntheses and properties of polyimides derived from diamines containing 2,5-disubstituted pyridine group.JOURNAL OF APPLIED POLYMER SCIENCE,102(2),1844-1851. |
| MLA | Xia, Aixiang,et al."Syntheses and properties of polyimides derived from diamines containing 2,5-disubstituted pyridine group".JOURNAL OF APPLIED POLYMER SCIENCE 102.2(2006):1844-1851. |
入库方式： OAI收割
来源：化学研究所
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