期刊
MACROMOLECULES
卷 45, 期 24, 页码 9595-9603出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma301666x
关键词
-
资金
- NIH [R01 GM031332-28]
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 M-w), 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.
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