Isomeric polyimides
文献类型：期刊论文
| 作者 | Ding MX |
| 刊名 | progress in polymer science
 |
| 出版日期 | 2007 |
| 卷号 | 32期号:6页码:623-668 |
| 关键词 | ACTIVE AROMATIC POLYIMIDES STRUCTURE-PROPERTY RELATIONSHIPS BIPHENYLTETRACARBOXYLIC DIANHYDRIDES CHEMICAL-STRUCTURE TRANSPORT-PROPERTIES BIPHENYL POLYIMIDES GAS-PERMEABILITY DIAMINES POLYMERIZATION COPOLYIMIDES |
| ISSN号 | 0079-6700 |
| 通讯作者 | ding mx |
| 中文摘要 | this review deals with polyimides based on isomeric dianhydrides and diamines, and with chiral polyimides. first, however, a summary is presented of recent work on the synthesis of isomeric dianhydrides, the reaction of mellophanic dianhydride with diamines, and the tendency toward cyclization in reactions of some dianhydrides and diamines. then turning to polymers, the discussion covers solubility, thermal and dielectric properties, permeability and permselectivity for gas separation, and rheology of isomeric polyimides. several useful general rules have been found: i.e. the glass transition temperature of polyimides based on isomeric dianhydrides with a given diamine decreases in the order 3,3'- > 3,4'- > 4,4-dianhydride if the polymers are of comparable molecular weight, whereas the thermal stability and the t-beta/t-g ratio (in absolute temperatures) increase in the order of 3,3'- < 3,4'- < 4,4'-dianhydride. polyimides from 3,3'- or 3,4'-dianhydride have higher solubility than those from 4,4'-dianhydride. polyimides from 3,4'-dianhydrides exhibit much lower melt viscosity than those from the other isomeric anhydrides. the dielectric constants of polyimides derived from m,m'-diamines are lower than those from p,p'-diamines. polyimides based on 3,3'- or 3,4'-dianhydrides have higher permeability and slightly lower permselectivity than polyimides based on 4,4'-dianhydrides. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247847700002 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14453]  |
| 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 | Ding MX. Isomeric polyimides[J]. progress in polymer science,2007,32(6):623-668. |
| APA | Ding MX.(2007).Isomeric polyimides.progress in polymer science,32(6),623-668. |
| MLA | Ding MX."Isomeric polyimides".progress in polymer science 32.6(2007):623-668. |
入库方式： OAI收割
来源：长春应用化学研究所
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