In 2022,Rizzarelli, Paola; La Carta, Stefania; Mirabella, Emanuele Francesco; Rapisarda, Marco; Impallomeni, Giuseppe published an article in Polymers (Basel, Switzerland). The title of the article was 《Sequencing Biodegradable and Potentially Biobased Polyesteramide of Sebacic Acid and 3-Amino-1-propanol by MALDI TOF-TOF Tandem Mass Spectrometry》.Application of 156-87-6 The author mentioned the following in the article:
Biodegradable and potentially biobased polyesteramide oligomers (PEA-Pro), obtained from melt condensation of sebacic acid and 3-amino-1-propanol, were characterized by NMR, matrix assisted laser desorption/ionization-time of flight/time of flight-mass spectrometry/mass spectrometry (MALDI-TOF/TOF-MS/MS), thermogravimetric anal. (TGA), and pyrolysis-gas chromatog./mass spectrometry (Py-GC/MS). NMR anal. showed the presence of hydroxyl and amino terminal groups as well as carboxylic groups of the sebacate moiety. Hydroxyl and carboxyl termination had the same abundance, while the amine termination was 2.7-times less frequent. Information regarding the fragmentation pathways and ester/amide bond sequences was obtained by MALDI-TOF/TOF-MS/MS anal. performed on sodiated adducts of cyclic species and linear oligomers. Different end groups did not influence the observed fragmentation. Three fragmentation pathways were recognized. The β-hydrogen-transfer rearrangement, which leads to the selective scission of the -O-CH2- bonds, was the main mechanism. Abundant product ions originating from -CH2-CH2- (β-γ) bond cleavage in the sebacate moiety and less abundant ions formed by -O-CO- cleavages were also detected. TGA showed a major weight loss (74%) at 381°C and a second degradation step (22% weight loss) at 447°C. Py-GC/MS performed in the temperature range of 350-400°C displayed partial similarity between the degradation products and the main fragments detected in the MALDI-TOF/TOF-MS/MS experiments Degradation products derived from amide bonds were related to the formation of CN groups, in agreement with the literature. In the experiment, the researchers used 3-Aminopropan-1-ol(cas: 156-87-6Application of 156-87-6)
3-Aminopropan-1-ol(cas: 156-87-6) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.Application of 156-87-6
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