Both IR and 1H-NMR spectra indicated that all acrylate groups were consumed in the reaction, based on which the structural parameters were calculated from the 1H-NMR spectra. With decreasing PDDA/TMPTA ratio, the content of secondary amine, degree of branching, molecular weight, Tg and Td ...
determined. In some embodiments, this analysis may be done using a SIMS instrument (e.g. NanoSIMS by Cameca, NanoTOF by Physical Electronics). Secondary Ion Mass Spectrometry is a surface sensitive technique that allows the detection and localization of the chemical composition of sample surfaces....
Infrared (IR) spectra were recorded using a Shimadzu IR Affinity-1 spectrometer (Shimadzu Corporation, Kyoto, Japan) for conventional measurement (KBr). CD spectra were recorded using a Jasco J-720W spectropolarimeter (JASCO) with a 1.0 mm path length cell. 1H NMR (400 MHz) and 13C ...
capable of tailoring the product selectivity to a large extend, but still generating an appreciable amount of toxic TOL by-product of ~8%32. Incorporation of additives (such as ammonia, NaOH, HCl, acetic acid, NaH2PO4et al.) is helpful to prompt primary amine formation19,28,31,33. However...
Multi-correlation analyses of TOF-SIMS spectra for mineralogical studies C. Engrand, J. Lespagnol, P. Martin, L. Thirkell, R. Thomas Pages 883-887 Article preview Sorry, this component is empty due to an unexpected error. Please try reloading the page. select article Cryogenic SIMS and its...
the general formula (1a) shown below is dissolved in a solvent such as tetrahydrofuran (THF), and is reacted with a halogenated compound having a perfluoroalkyl(oligomethylene) group and represented by the general formula (1b) shown below in the presence of a base such as an amine group. ...
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Moreover, the title compounds were characterized by elemental analyses, IR spectra and TGA analyses. The third-order non-linear optical properties of the title compounds were also investigated and all exhibit nicer non-linear absorption and self-focusing performance. 展开 ...
A solution of propargylamine (1.38 mL, 20.0 mmol) and TRIAZIMOCH (15 wt % H2O, 6.50 g, 20.0 mmol) in THF (100 mL) was added to a solution of L-(+)-lactic acid (3.2 g, 20.0 mmol) at room temperature. The resulting solution was stirred at room temperature overnight. White ...
These evolutions of selective pores benefit in transparency of the cell as less hurdles exist in the light passage. One tradeoff that the AEP exhibits regarding its visual properties, is that the polymer taints the battery slightly yellow. AEP in general contains aromatic amine functional groups whi...