Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 142-25-6, Name is N1,N1,N2-Trimethylethane-1,2-diamine, SMILES is CNCCN(C)C, belongs to amides-buliding-blocks compound. In a document, author is El-Gamal, Mohammed, I, introduce the new discover, Name: N1,N1,N2-Trimethylethane-1,2-diamine.
TBD-Catalyzed Ring-Opening Polymerization of Alkyl-Substituted Morpholine-2,5-Dione Derivatives
In a two-step synthesis, five different alkyl-substituted morpholine-2,5-dione monomers were synthesized from the natural amino acids glycine, alanine, valine, leucine, and isoleucine. The heterocyclic compounds crystallize in a boat-like conformation and are polymerized via 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD)-catalyzed ring-opening polymerization (ROP) in tetrahydrofuran. Well-defined polymers could be obtained from the monomers based on valine, leucine, and isoleucine at a feed ratio of M/I/TBD = 100/1/0.5. Kinetic studies of the ROP reveal that the molar masses and dispersities (D < 1.2) could be well controlled, as confirmed by size exclusion chromatography and H-1 NMR spectroscopy. At conversions above 50%, the polymerization rate decreases and the dispersity slightly increases, presumably due to transesterification. Matrix-assisted laser desorption time-of-flight mass spectrometry indicates the presence of polymer chains with alpha-end groups derived from the initiator. The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 142-25-6 is helpful to your research. Name: N1,N1,N2-Trimethylethane-1,2-diamine.