Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, Recommanded Product: 1-Chloro-3,5-dimethyladamantane707-36-8, Name is 1-Chloro-3,5-dimethyladamantane, SMILES is CC1(C2)CC3(C)CC2(Cl)CC(C3)C1, belongs to chlorides-buliding-blocks compound. In a article, author is Yada, Shiho, introduce new discover of the category.
Unique interfacial adsorption behavior of a hydroxy group-containing amino acid surfactant
The interfacial adsorption properties of the novel hydroxy-group-containing amino-acid-type surfactant, N-alkanoyl N-(2-hydroxyethyl)-beta-alanine (C-n-EtOH-beta Ala, where n is the length of the alkyl chain; n = 8, 10, 12, 14, and 16; EtOH is the hydroxyethyl group; beta Ala is beta-alanine), and the hydroxy-group-free conventional amino-acidtype surfactant, N-dodecanoyl-N-methyl-beta-alanine (C-12-Me-beta Ala), were investigated for comparison purposes in an alkaline solution. C-n-EtOH-beta Ala (where n = 10-14) possessed a significant minimum critical micelle concentration (CMC) in surface tension vs. concentration plots, contrary to the conventional surfactant C-12-Me-beta Ala. The area occupied per molecule for C-n-EtOH-beta Ala (0.316 nm(2)) was considerably decreased compared with C-12-Me-beta Ala (0.683 nm(2)); this was attributed to hydrogen bonding between the hydroxy group and water/carboxylate ions in C-n-EtOH-beta Ala, which facilitated the dense adsorption and efficient orientation of the surfactant at the air/water interface. The relationship between the logarithm of the CMC and the n value of C-n-EtOH-beta Ala indicated that the surfactant exhibited nonionic-like behavior because the hydrogen bonding between the hydroxy groups and carboxylate ions suppressed the electrostatic repulsion between hydrophilic groups.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 707-36-8. Recommanded Product: 1-Chloro-3,5-dimethyladamantane.