Polyimides from isomeric biphenyltetracarboxylic dianhydrides and the effects of chemical structure on solubility
文献类型：期刊论文
| 作者 | Tong YJ ; Liu SL ; Guan HM ; Ding MX |
| 刊名 | polymer engineering and science
 |
| 出版日期 | 2002 |
| 卷号 | 42期号:1页码:101-110 |
| 关键词 | AROMATIC COPOLYIMIDES SOLUBLE POLYIMIDES FIBERS |
| ISSN号 | 0032-3888 |
| 通讯作者 | tong yj |
| 中文摘要 | a series of homopolyimides and copolyimides was synthesized by the solution condensation of biphenyltetracarboxylic dianhydride (bpda) isomers and various diamines followed by chemical imidization. these polyimides had intermediate to high molecular weights with inherent viscosities of 0.34-1.01 dl/g for homopolyimides and 0.48-1.02 dl/g for copolyimides. thermogravimetric analysis indicated that the aromatic polyimides were stable up to 500degreesc, and the 5% weight loss temperatures were recorded in the range of 506-597degreesc in an air atmosphere and in the range of 517-601degreesc in a nitrogen atmosphere, depending on the diamines used. the glass transition temperatures of aromatic homopolyimides were above 271degreesc, while the glass transition temperatures of the copolyimides increased with an increase in the 2, 2', 3, 3'-bpda-component. the effects of the chemical structure of the polymer chain on the solubility were investigated. it was found that the solubility of bpda-based polyimides could be improved by the introduction of flexible units, nonlinear and non-coplanar units, and copolymerization. the polyimides with nonlinear and non-coplanar units derived from 2, 2', 3, 3'-bpda appeared to have prominently enhanced solubility in polar aprotic solvents and polychlorocarbons when compared with the homopolyimide derived from 3, 3', 4, 4'-bpda. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000173737000009 |
| 公开日期 | 2010-11-03 |
| 源URL | [http://202.98.16.49/handle/322003/18803]  |
| 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 | Tong YJ,Liu SL,Guan HM,et al. Polyimides from isomeric biphenyltetracarboxylic dianhydrides and the effects of chemical structure on solubility[J]. polymer engineering and science,2002,42(1):101-110. |
| APA | Tong YJ,Liu SL,Guan HM,&Ding MX.(2002).Polyimides from isomeric biphenyltetracarboxylic dianhydrides and the effects of chemical structure on solubility.polymer engineering and science,42(1),101-110. |
| MLA | Tong YJ,et al."Polyimides from isomeric biphenyltetracarboxylic dianhydrides and the effects of chemical structure on solubility".polymer engineering and science 42.1(2002):101-110. |
入库方式： OAI收割
来源：长春应用化学研究所
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