37571-91-8Relevant academic research and scientific papers
Mass density measurement as a tool to distinguish between micelle size shape in nematic and chiral nematic phases
Acimis,Akpinar
, p. 4197 - 4203 (2003)
The effect of the solute structure on micelle size and micelle shape were studied on two sets of specific solutes. The mass density of the first set, consisting of achiral solutes phenol, benzene, cyclohexanol, and cyclohexane, was measured in the same host phase. The mass density changed in the order: phenol > cyclohexanol > benzene > cyclohexane. The effect of the solutes on mass density of the host phase was due to the capability of the hydrophilic group and the hydrophobic part of the solutes to interact with the corresponding region of the host micelle. The second set contained racemic amphiphilic mixtures and their enantiomers, decyl- and dodecyl-esters of serine and alanine. The mass density increased in the serine phases but decreased in the alanine phases as the DL-racemic amphiphiles of the nematic phases were replaced by their L-isomers. These results were due to a definite arrangement of the head groups in the racemic nematic and intrinsic chiral nematic phases. A distinction between the induced chiral nematic phases and the intrinsic chiral ones is possible on the basis of the mass density difference between the achiral/induced chiral nematics and the racemic/intrinsic chiral nematics.
Method for controlling weeds with amino acid higher alkyl esters
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, (2008/06/13)
A herbicidal composition comprising a herbicidal amount of an active compound selected from the group consisting of acid addition salts of higher alkyl esters of amino acids, acid addition salts of N-lower alkyl substitution products of said esters and quaternary ammonium salts of N-lower alkyl substitution products of said esters, and a diluent or carrier, and a method for controlling weeds using said herbicidal composition.
