5721-12-0Relevant articles and documents
Interfacial synthesis and properties of l-lysine-derived optically active poly(ester-imide)s
Zahmatkesh, Saeed,Alborzi, Ali Reza,Sadeghi, Javad,Zare, Karim
scheme or table, p. 607 - 610 (2012/02/01)
l-Lysine hydrochloride was transformed to ethyl l-lysine dihydrochloride. This salt was reacted with trimellitic anhydride to yield the corresponding diacid (1). Interfacial polycondensation results novel poly(ester-imide)s (PEIa-i). These polymers have inherent viscosities in the range of 0.23-0.47 dl g-1, display optical activity, and are readily soluble in polar aprotic solvents. They start to decompose (T10%) above 350 °C and display glass-transition temperatures at 100.42-172.81 °C. All of the above polymers were fully characterized by UV, FT-IR and 1H NMR spectroscopy, elemental analysis, TGA, DSC, inherent viscosity measurement and specific rotation.
Synthesis and antimicrobial characterization of novel l-lysine gemini surfactants pended with reactive groups
Tan, Hong,Xiao, Huining
, p. 1759 - 1761 (2008/09/18)
A series of novel quaternary ammonium gemini surfactants of l-lysine containing ester group were synthesized with high yield rate. The antibacterial and antifungal activities of these gemini surfactants were evaluated by quantifying the minimal inhibitory concentration (MIC). The results indicated that the quaternary ammonium gemini surfactants exhibited improved activity against a broad spectrum of Gram-positive and Gram-negative bacteria as well as fungi. The pended ester group provides a reactive site for incorporating the surfactant into polymers, thus leading to the polymers with high antimicrobial efficiency.