Heteroaromatic polymers - High temperature polypyrrolones derived from 2,6-bis(3 ',4 '-diaminophenyl)-4-biphenylpyridine and various aromatic dianhydrides
文献类型：期刊论文
| 作者 | Yang, HX; Liu, JG; Zhao, XJ; Li, YF; Fan, L; Yang, SY |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2005-09-01 |
| 卷号 | 23期号:5页码:521-529 |
| 关键词 | Tetraamine Polypyrrolone Pyridine High Temperature Polymers Film Hydrolysis-resistance |
| ISSN号 | 0256-7679 |
| 英文摘要 | A new type of aromatic tetraamine containing biphenyl moiety in the side chain was synthesized via a modified Chichibabin's reaction. 3-Nitro-4-acetamidoacetophenone was reacted with 4-phenyl benzaldehyde in the presence of ammonium acetate to obtain 2,6-bis(3',4'-diaminophenyl)-4-biphenyl pyridine (DPPA). A series of polypyrrolones (PPys) were prepared using tetraamine and various aromatic dianhydrides via a two-step cyclization procedure. All the PPys show excellent high temperature stabilities with the initial decomposition temperatures of 530-549 degrees C and residual weight ratio of 49%-80% at 750 degrees C in nitrogen. The polymers exhibit no apparent glass transition temperatures (T(g)s) except PPy-1 (T-g = 327 degrees C), which is derived from tetraamine DPPA and 2,2-bis[4-(3',4'-dicarboxyphenoxy)-phenyl] propane dianhydride (BPADA). In addition, the polymers have acceptable mechanical properties with the tensile strength of 65-94 MPa. The PPy films show excellent hydrolysis-resistance in alkaline aqueous medium and could maintain most of the properties even after boiling in 10% aqueous sodium hydroxide solution for a week. |
| 语种 | 英语 |
| WOS记录号 | WOS:000232362300009 |
| 出版者 | WORLD SCIENTIFIC PUBL CO PTE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/56599]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, SY |
| 作者单位 | 1.Lanzhou Univ, Sch Chem & Chem Engn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, HX,Liu, JG,Zhao, XJ,et al. Heteroaromatic polymers - High temperature polypyrrolones derived from 2,6-bis(3 ',4 '-diaminophenyl)-4-biphenylpyridine and various aromatic dianhydrides[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2005,23(5):521-529. |
| APA | Yang, HX,Liu, JG,Zhao, XJ,Li, YF,Fan, L,&Yang, SY.(2005).Heteroaromatic polymers - High temperature polypyrrolones derived from 2,6-bis(3 ',4 '-diaminophenyl)-4-biphenylpyridine and various aromatic dianhydrides.CHINESE JOURNAL OF POLYMER SCIENCE,23(5),521-529. |
| MLA | Yang, HX,et al."Heteroaromatic polymers - High temperature polypyrrolones derived from 2,6-bis(3 ',4 '-diaminophenyl)-4-biphenylpyridine and various aromatic dianhydrides".CHINESE JOURNAL OF POLYMER SCIENCE 23.5(2005):521-529. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。