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- W2099323215 endingPage "2006" @default.
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- W2099323215 abstract "Diffusion-ordered spectroscopy (DOSY) NMR was successfully used to characterize amphiphilic block copolymers. A triblock copolymer was prepared by ring-opening polymerisation of a lactide using poly(ethylene glycol) as the initiator. The DOSY NMR experiment is revealed to be a useful analytical method to prove the formation of block copolymers. According to the DOSY map, PLA and PEG blocks exhibited the same diffusion coefficient of 5.623 × 10−10 m2 s−1, consistent with an efficient polymerisation of the lactide. The determination of the critical micelle concentration (CMC) using DOSY NMR experiments has also been reported. The CMC value correlated with those obtained by fluorimetry and static light scattering. The CMC value was found to be 0.11 g L−1. All the results suggest that DOSY NMR is a valuable analytical tool for the polymer community. The good correlation between the results from DOSY, fluorescence and SLS experiments suggests that the DOSY spectroscopy can accurately measure the CMC of amphiphilic copolymer solutions." @default.
- W2099323215 created "2016-06-24" @default.
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- W2099323215 date "2012-01-01" @default.
- W2099323215 modified "2023-10-18" @default.
- W2099323215 title "Diffusion ordered spectroscopy (DOSY) as a powerful tool for amphiphilic block copolymer characterization and for critical micelle concentration (CMC) determination" @default.
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- W2099323215 doi "https://doi.org/10.1039/c2py20054f" @default.
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