Titration microcalorimetry of micelle formation in aqueous solutions containing alkylpolyoxyethylene glycol ethers, C12H25(OCH2CH2)mOH where m=3, 4 and 5, and octadecyltrimethylammonium bromide
Literature Information
Jan B. F. N. Engberts, Jan Kevelam
Titration microcalorimetric results are reported for alkylpolyoxyethylene glycol ethers, C12H25(OCH2CH2)mOH where m=3, 4 or 5 at ambient pressure and 298.2 K. The enthalpograms yield estimates of critical micelle concentrations (c.m.c.) which for these surfactants cover the range from 3.25(±0.22)×10−5 to 5.26(±0.49)×10−5 mol dm−3 with increasing integer m. The enthalpograms are complicated. Although the recorded enthalpies of injection are exothermic, the dominant process accompanying injection of an aliquot into the sample cell is not simple micelle deaggregation. Rather these surfactant solutions above the c.m.c. contain both micelles and higher aggregates. In a similar fashion, enthalpograms for aqueous solutions containing octadecyltrimethylammonium bromide, C18H37N+ Me3Br− (OCTAB) do not follow the previously reported pattern for n-hexadecyltrimethylammonium bromide (CTAB), pointing to the dramatic impact of an additional methylene group in the alkyl chain of the cationic surfactant on the aggregation of this surfactant in aqueous solution.
Related Literature
Electrochemical properties of oxygenated cup-stacked carbon nanofiber-modified electrodes
Seongjae Ko, Tetsu Tatsuma, Akiyoshi Sakoda, Yasuyuki Sakai, Kikuo Komori
DOI: 10.1039/C4CP01278J
Kink energy and kink dipole moments on vicinal Au(001) in halide electrolytes
M. Al-Shakran, G. Beltramo, M. Giesen
DOI: 10.1039/C4CP00448E
Computational study of the Rayleigh light scattering properties of atmospheric pre-nucleation clusters
Jonas Elm, Patrick Norman, Merete Bilde, Kurt V. Mikkelsen
DOI: 10.1039/C4CP01206B
Probing crystal structure and mesoscale assembly of cellulose microfibrils in plant cell walls, tunicate tests, and bacterial films using vibrational Sum Frequency Generation (SFG) spectroscopy
Christopher M. Lee, Kabindra Kafle, Yong Bum Park, Seong H. Kim
DOI: 10.1039/C4CP00515E
Efficient water oxidation with organometallic iridium complexes as precatalysts
Anna Lewandowska-Andralojc, Dmitry E. Polyansky, Chiu-Hui Wang, Etsuko Fujita
DOI: 10.1039/C3CP55101F
Built-in potential shift and Schottky-barrier narrowing in organic solar cells with UV-sensitive electron transport layers
Cheng Li, Dan Credgington, Doo-Hyun Ko, Zhuxia Rong, Jianpu Wang, Neil C. Greenham
DOI: 10.1039/C4CP01251H
The protective effect of the mesoporous host on the photo oxidation of fluorescent guests: a UV-Vis spectroscopy study
Annalisa Massa, Elena Ugazio
DOI: 10.1039/C4CP01143K
Effect of amide bonds on the self-assembly of gemini surfactants
Jiaul Hoque, Spandhana Gonuguntla, Venkateswarlu Yarlagadda, Vinod K. Aswal, Jayanta Haldar
DOI: 10.1039/C3CP55244F
Spiropyran as a reusable chemosensor for selective colorimetric detection of aromatic thiols
Yasuhiro Shiraishi, Kohei Yamamoto, Shigehiro Sumiya, Takayuki Hirai
DOI: 10.1039/C3CP55478C
Ternary Pt/SnOx/TiO2 photocatalysts for hydrogen production: consequence of Pt sites for synergy of dual co-catalysts
Quan Gu, Jinlin Long, Huaqiang Zhuang, Chaoqiang Zhang, Yangen Zhou, Xuxu Wang
DOI: 10.1039/C4CP01496K
You might also like
What precautions should be taken when handling 4-Methyl-6-(trifluoromethyl)quinoline (CAS: 40716-16-3)?
When handling 4-Methyl-6-(trifluoromethyl)quinoline (CAS: 40716-16-3), safety go...
What is 4-(3,5-Difluorophenyl)aniline (CAS: 405058-00-6)?
4-(3,5-Difluorophenyl)aniline is an aromatic organic compound with the CAS numbe...
How is 5-{[4-(Trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole-4-carboxylic acid (CAS: 338982-07-3) typically synthesized?
5-{[4-(Trifluoromethyl)phenyl]sulfanyl}-1,2,3-thiadiazole-4-carboxylic acid can ...
What is the market or research trend for 4-Benzylaniline hydrochloride (CAS: 6317-57-3)?
The market for 4-Benzylaniline hydrochloride (CAS: 6317-57-3) is steadily growin...
Is [3-(Diethylsulfamoyl)phenyl]boronic acid (CAS: 871329-58-7) safe?
[3-(Diethylsulfamoyl)phenyl]boronic acid is generally considered safe when handl...
What are the main uses of 3-Bromo-2,5-dimethoxyaniline (CAS: 115929-62-9)?
3-Bromo-2,5-dimethoxyaniline is mainly used in the pharmaceutical and chemical i...
What regulatory guidelines apply to N-Methyl-1-(5-methyl-1H-indol-3-yl)methanamine (CAS: 915922-67-7)?
N-Methyl-1-(5-methyl-1H-indol-3-yl)methanamine (CAS: 915922-67-7) is subject to ...
What industries use Carbamic acid, N-[(5S)-5,6-diamino-6-oxohexyl]-, 1,1-dimethylethyl ester (CAS: 24828-96-4)?
This compound is primarily used in the pharmaceutical industry for the synthesis...
How should 2-Methyl-2-propanyl [(1S,3R)-3-aminocyclohexyl]carbamate (CAS: 1298101-47-9) be stored?
2-Methyl-2-propanyl [(1S,3R)-3-aminocyclohexyl]carbamate (CAS: 1298101-47-9) sho...
What industries use Ethyl 2-bromo-4,4,4-trifluorobutanoate (CAS: 367-33-9)?
Ethyl 2-bromo-4,4,4-trifluorobutanoate (CAS: 367-33-9) is utilized in the pharma...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-Diacetyloxy-15-[(2R,3S)-3-benzamido-3-phenyl-2-(2,2,2-trichloroethoxycarbonyloxy)propanoyl]oxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate structure [(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-Diacetyloxy-15-[(2R,3S)-3-benzamido-3-phenyl-2-(2,2,2-trichloroethoxycarbonyloxy)propanoyl]oxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate structure](https://static.chemtradehub.com/structs/100/100431-55-8-7104.webp)
![(2E)-3-(3-Chlorophenyl)-N-{2-[4-(methylsulfonyl)-1-piperazinyl]-2-oxoethyl}acrylamide structure (2E)-3-(3-Chlorophenyl)-N-{2-[4-(methylsulfonyl)-1-piperazinyl]-2-oxoethyl}acrylamide structure](https://static.chemtradehub.com/structs/250/2505001-54-5-c1e9.webp)


