Application of 1H DOSY for Facile Measurement of Polymer Molecular Weights
- 4 December 2012
- journal article
- research article
- Published by American Chemical Society (ACS) in Macromolecules
- Vol. 45 (24) , 9595-9603
Abstract
To address the practical issues of polymer molecular weight determination, the first accurate polymer weight-average molecular weight determination method in diverse living/controlled polymerization via DOSY (diffusion-ordered NMR spectroscopy) is reported. Based on the linear correlation between the logarithm of diffusion coefficient (log D) and the molecular weights (log Mw), external calibration curves were created to give predictions of molecular weights of narrowly dispersed polymers. This method was successfully applied to atom transfer radical polymerization (ATRP), reversible addition–fragmentation chain transfer (RAFT), and ring-opening metathesis polymerization (ROMP), with weight-average molecular weights given by this method closely correlated to those obtained from GPC measurement.Keywords
This publication has 42 references indexed in Scilit:
- Pulsed Gradient Spin−Echo (PGSE) Diffusion and 1H,19F Heteronuclear Overhauser Spectroscopy (HOESY) NMR Methods in Inorganic and Organometallic Chemistry: Something Old and Something NewChemical Reviews, 2005
- Diffusion NMR Spectroscopy in Supramolecular and Combinatorial Chemistry: An Old Parameter—New InsightsAngewandte Chemie International Edition, 2005
- Physical Properties of Polymers2004
- Diffusion NMR Spectroscopy for the Characterization of the Size and Interactions of Colloidal Matter: The Case of Vesicles and NanoparticlesJournal of the American Chemical Society, 2004
- Novel Distance Dependence of Diffusion Constants in Hyaluronan Aqueous Solution Resulting from Its Characteristic Nano-MicrostructureJournal of the American Chemical Society, 2001
- Diffusion ordered nuclear magnetic resonance spectroscopy: principles and applicationsProgress in Nuclear Magnetic Resonance Spectroscopy, 1999
- Diffusion of Block Copolymers in Liquid CO2: Evidence of Self-Assembly from Pulsed Field Gradient NMRJournal of the American Chemical Society, 1998
- Determination of Molecular Weight Distributions for Polymers by Diffusion-Ordered NMRJournal of the American Chemical Society, 1995
- Resolution of discrete and continuous molecular size distributions by means of diffusion-ordered 2D NMR spectroscopyJournal of the American Chemical Society, 1993
- Diffusion-ordered two-dimensional nuclear magnetic resonance spectroscopyJournal of the American Chemical Society, 1992