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NMR study on solubility of benzyl alcohol and its transfer free energy from D 2 O to cationic micelle
Author(s) -
Shen Qiang,
Li GanZuo,
Ma ChengSong,
Hao ShuXuan,
Wei XiLian,
Huang YanZhang
Publication year - 1997
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.19970150504
Subject(s) - chemistry , solubility , benzyl alcohol , micelle , alcohol , cationic polymerization , aqueous solution , pulmonary surfactant , micellar solutions , phase (matter) , medicinal chemistry , organic chemistry , catalysis , biochemistry
A new kind of surfactant, [C n H 2 n +1 OCH 2 CH(OH)CH 2 N(CH 3 ) 3 ]Cl ( n =12, 14, 16) was synthesized. The solubility of benzyl alcohol in micellar solutions was determined by 1 H NMR method. The results indicate that the length of alkyl chains of surfactant affects the solubility of benzyl alcohol in 2.5 × 10 −2 mol/L micellar solutions. The solubility of benzyl alcohol per liter of micellar solution is 0.095 mole for n =12, 0.115 mole for n =14, 0.165 mole for n =16. The transfer free energy of benzyl alcohol from aqueous phase to micellar phase is −24.29 kJ/mol for n =12, −24.37 kJ/mol for n =14, −24.49 kJ/mol for n =16.

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