Chromatographic separation and C-13 NMR characterization of aromatic diester-diacids isomers
文献类型：期刊论文
| 作者 | Huang WX ; Gao LX ; Zhang X ; Xu JP ; Ding MX |
| 刊名 | macromolecular chemistry and physics
 |
| 出版日期 | 1996 |
| 卷号 | 197期号:4页码:1473-1484 |
| 关键词 | POLYAMIC ACID IMIDIZATION POLYIMIDES |
| ISSN号 | 1022-1352 |
| 中文摘要 | reverse phase high performance liquid chromatography (hplc) was used to separate and quantify aromatic diester-diacids isomers which arise from the opening selectivity of anhydride rings towards methanol. c-13 nmr spectroscopy was a supplementary tool to characterize the isomer structure. it was found that a meta-position attack is slightly preferred in pyromellitic dianhydride (pmda), while the preferred position of an attack in bridged dianhydrides is determined by the chemical nature (donors or accepters) of the bridged group. the stronger its electron-withdrawing abilities, the lower the probability of a meta-position attack. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2010-12-22 ; 2011-06-09 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/25497]  |
| 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 | Huang WX,Gao LX,Zhang X,et al. Chromatographic separation and C-13 NMR characterization of aromatic diester-diacids isomers[J]. macromolecular chemistry and physics,1996,197(4):1473-1484. |
| APA | Huang WX,Gao LX,Zhang X,Xu JP,&Ding MX.(1996).Chromatographic separation and C-13 NMR characterization of aromatic diester-diacids isomers.macromolecular chemistry and physics,197(4),1473-1484. |
| MLA | Huang WX,et al."Chromatographic separation and C-13 NMR characterization of aromatic diester-diacids isomers".macromolecular chemistry and physics 197.4(1996):1473-1484. |
入库方式： OAI收割
来源：长春应用化学研究所
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