中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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