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https://www.selleckchem.com/ Herein, a novel cellulose derivative has been synthesized and investigated as a nature-derived solid polymer electrolyte for lithium batteries. Cellulose is oxidized in a two-step process to dicarboxylic acid cellulose to allow for grafting low molecular weight poly(ethylene glycol) monomethyl ether (550 g mol-1) via Fischer-Speier esterification at the thus obtained carboxyl groups. The chemical structure of the synthesized materials is confirmed by Fourier-transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy as well as X-ray diffraction. Incorporating lithium bis(trifluoromethane-sulfonyl)imide (LiTFSI) as conducting salt and N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (Pyr14TFSI) ionic liquid as plasticizer results in the realization of an amorphous and solvent-free solid polymer electrolyte. These electrolyte membranes are characterized by high thermal and electrochemical stability and ionic conductivities of about 1×10-5 S cm-1 at 20 °C and 2.5×10-4 S cm-1 at 80 °C, which enables very stable lithium stripping and plating for more than 800 h.Monosaccharide composition analysis after acid hydrolysis is the first step towards structural characterization of the polysaccharides. To modernize the hydrolytic procedure, we used a polymerase chain reaction (PCR) instrument to accomplish the task, which allows to generate monosaccharide products from up to 96 samples simultaneously within 30 min. Fucoidan, chitosan and propylene glycol alginate sodium sulfate (PSS) were chosen as representatives of complex, basic and acidic polysaccharides to optimize the hydrolytic conditions, respectively, through the orthogonal L9 (34) experiments. The hydrolysis loss ratio for monosaccharide standards were also measured. Using this assay, the hydrolysis plus 1-phenyl-3-methyl-5-pyrazolone (PMP) labeling of the monosaccharide products could be accomplished in 90 min with the RSD values less than 5 % based on HPL

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