Dec 16, 2021 · In this experiment, students performed a ring-opening polymerization (ROP) reaction in the laboratory and, then, collected a series of 1D NMR spectra with the aim of …

Jun 13, 2012 · In this work, poly(lactic acid) (PLA) dimer model compounds with different tacticities were synthesized and studied in detail by 1H and 13C nuclear magnetic resonance …

Dec 16, 2021 · In this experiment, students performed a ring-opening polymerization (ROP) reaction in the laboratory and, then, collected a series of 1D NMR spectra with the aim of …

The physical properties of poly(lactic acid) (PLA) are influenced by its stereoregularity and stereosequence distribution, and its polymer stereochemistry can be effectively studied by …

Sep 1, 2014 · A new analytical procedure is proposed in this work for the 1 H and 13 C NMR analysis of PLA. The procedure uses deuterated pyridine as the NMR solvent, which has been …

In this work, poly(lactic acid) (PLA) dimer model compounds with different tacticities were synthesized and studied in detail by 1H and 13C nuclear magnetic resonance (NMR) in three …

Sep 24, 2006 · High resolution 500 MHz 1 H NMR spectroscopy is a powerful tool for the analysis and characterization of poly(lactide) (PLA). It accurately provides information about the …

mPEG-PLA and PLA-PEG-PLA copolymeric nanoparticles with three different PLA to PEG ratios are synthesized and used for encapsulation of recombinant human Growth hormone (rhGH). …

The PLA oligomers were prepared by direct catalyst-free condensation polymerization of l-lactic acid monomers and characterized by FT-IR and 1 H-NMR. The antiviral results demonstrate …

Jul 29, 2021 · NMR spectroscopy is a powerful analytical technique for the determination of the tacticity of PLA. This article describes in details the tacticity assignment for PLA derived from …