Structural investigations of poly(methyl methacrylate) by two-dimensional NMR

被引：79

作者：

Brar, AS ^{[1
]}

Singh, G ^{[1
]}

Shankar, R ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, New Delhi 110016, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2004年 / 703卷 / 1-3期

关键词：

NMR; PMMA; microstructure; modeling;

D O I：

10.1016/j.molstruc.2004.05.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present paper a comprehensive microstructure analysis of PMMA based on the combination of one-dimensional and two-dimensional (TOCSY, HSQC, and HMBC) NMR experiments is reported. To resolve complex resonance assignments, empirical chemical shift modeling supported by the 2D NMR spectroscopy has been done. Rigorous assignments of resonance signals have been done by investigating the one bond couplings between carbon/proton nuclei by the HSQC (heteronuclear single quantum coherence) and two bond proton/proton couplings by TOCSY (total correlation spectroscopy) experiments. Investigations of the two and three bond order carbon/proton couplings from HMBC.(heteronuclear multi bond correlation) spectrum are reported. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：69 / 81

页数：13

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