L-Lactide polymerization studied by 1H NMR with diffusion-ordered spectroscopy (DOSY): a "One NMR Tube Experiment" providing data on monomer conversion, polymer structure, Mn and Mw

被引：32

作者：

Lewinski, P. ^{[1
]}

Sosnowski, S. ^{[1
]}

Kazmierski, S. ^{[1
]}

Penczek, S. ^{[1
]}

机构：

[1] Polish Acad Sci, Ctr Mol & Macromol Studies, PL-90363 Lodz, Poland

来源：

POLYMER CHEMISTRY | 2015年 / 6卷 / 24期

关键词：

NUCLEAR-MAGNETIC-RESONANCE; STUDYING TRANSLATIONAL DIFFUSION; FIELD GRADIENT; TIN(II) OCTOATE; DISTRIBUTIONS; MECHANISM; KINETICS; TOOL;

D O I：

10.1039/c5py00455a

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

L-Lactide polymerization was studied by a "One NMR Tube Experiment". Traditional H-1 NMR, which provides structural information, conversion values, and number average molar mass (M-n), was combined with diffusion-ordered spectroscopy (DOSY), yielding a mass averaged molar mass (M-w). Thus, a complete kinetic experiment could be performed without sampling, and hence in one NMR tube.

引用

页码：4353 / 4357

页数：5

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