Structural investigation of poly (methyl acrylate) by 2D HMBC NMR

被引：13

作者：

Brar, A. S. ^{[1
]}

Goyal, Ashok Kumar ^{[1
]}

Hooda, Sunita ^{[2
]}

机构：

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

[2] Acharya Narendra Dev Coll, Dept Chem, New Delhi 110019, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2008年 / 885卷 / 1-3期

关键词：

methyl acrylate; HMBC; microstructure; NMR; polymerization;

D O I：

10.1016/j.molstruc.2007.10.001

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：

Three and four bond order couplings between carbonyl carbon and other neighboring protons have been investigated in detail with the help of 2D heteronuclear multiple bond correlation (HMBC) spectrum. The methine and methylene protons in pentad and tetrad configuration were found to couple with carbonyl carbon. The intensity ratio of methylene protons' cross peaks in HMBC spectrum shows that 50% of poly methyl acrylate (PMA) is in isotactic and 50% is in syndiotactic configuration. The configurational analysis was mainly carried out with the help of 2D HMBC spectrum. (C) 2008 published by Elsevier B.V.

引用

页码：15 / 17

页数：3

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