Abstract
Angular dependence of light scattering from aqueous NaCl solutions of dimethyloleylamine oxide has been measured in the presence of NaCl from 5×10−4 M to 10−1 M at 25 °C. The molecular weight and radius of gyration of micelles increase with increasing micelle concentration and reach constant values, suggesting occurrence of the sphere-rod equilibrium dependent on the micelle concentration. With increasing NaCl concentration, rodlike micelles are larger in molecular weight and become longer. The micelles formed at NaCl concentrations higher than 10−3 M are nearly monodisperse when the micelle concentration is high.
Rodlike micelles of dimethyloleylamine oxide in 10−2 M and 5 × 10−2 M NaCl solutions have molecular weights of 4,760,000 and 6,900,000, respectively, and behave as semi-flexible or wormlike chains. In 5×10−2 M NaCl they have a contour length of 5750 Å and a persistence length of 1760 Å. These micelle parameters correspond to the end-to-end distance of 3780 Å and the number of Kuhn's statistical segments of 1.64. The large aggregation number of the rodlike micelles is induced by the strong cohesion of long hydrocarbon chains in solution, and their flexibility is caused by the hydration of amine oxide groups.
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Kushner LM, Hubbard WD (1954) J Phys Chem 58:1163
Becher P (1961) J Colloid Sci 16:49
Becher P (1962) J Colloid Sci 17:325
Schick MJ, Atlas SM, Eirich FR (1962) J Phys Chem 66:1326
Elworthy PH, Macfarlane CB (1962) J Chem Soc 537
Elworthy PH, Florence AT (1965) Kolloid Z Z Polymere 204:105
ElEini DID, Barry BW, Rhodes CT (1976) J Colloid Interface Sci 54:348
Tanford C, Nozaki Y, Rohde F (1977) J Phys Chem 81:1555
Balmbra RR, Clunie JS, Corkill JM, Goodman JF (1962) Trans Faraday Soc 58:1661
Balmbra RR, Clunie JS, Corkill JM, Goodman JF (1964) Trans Faraday Soc 60:979
Elworthy PH, Macfarlane CB (1963) J Chem Soc 907
Elworthy PH, McDonald C (1964) Kolloid Z Z Polymere 195:16
Herrmann KW, Bruchmiller JG, Courchene WL (1966) J Phys Chem 70:2909
Corkill JM, Goodman JF, Walker T (1967) Trans Faraday Soc 63:759
Ottewill RH, Storer CC, Walker T (1967) Trans Faraday Soc 63:2796
Attwood D (1968) J Phys Chem 72:339
Hoh LK, Barlow DO, Chadwick AF, Lake DB, Sheeran SR (1963) J Amer Oil Chem Soc 40:268
Ikeda S, Tsunoda M, Maeda H (1978) J Colloid Interface Sci 67:336
Herrmann KW (1962) J Phys Chem 66:295
Corkill JM, Herrmann KW (1963) J Phys Chem 67:934
Ikeda S, Tsunoda M, Maeda H (1979) J Colloid Interface Sci 70:448
Courchene WL (1964) J Phys Chem 68:1870
Imae T, Ikeda S (1984) J Colloid Interface Sci 98:363
Zimm BH (1948) J Chem Phys 16:1099
Geiduschek EP, Holtzer A (1958) Advan Biol Med Phys 6:431
Tanford C (1961) Physical Chemistry of Macromolecules, Chap 5:305 Wiley
Froelich D, Strazielle C, Bernardi G, Benoit H (1963) Biophys J 3:115
Benoit H, Doty P (1953) J Phys Chem 57:958
Debye P, Anacker EW (1950) J Phys Colloid Chem 55:644
Doty P, Steiner RF (1950) J Chem Phys 18:1211
Holtzer A (1955) J Polymer Sci 17:432
Kratky O, Porod G (1949) Rec Trav Chim 68:1106
Ikeda S, Ozeki S, Tsunoda M (1980) J Colloid Interface Sci 73:27
Hayashi S, Ikeda S (1980) J Phys Chem 84:744
Ikeda S, Hayashi S, Imae T (1981) J Phys Chem 85:106
Ozeki S, Ikeda S (1982) J Colloid Interface Sci 87:424
Ozeki S, Ikeda S (1984) Colloid Polymer Sci 262:409
Mukerjee P (1972) J Phys Chem 76:565
Tausk RJM, Overbeek JThG (1974) Biophys Chem 2:175
Missel PJ, Mazer NA, Benedek GB, Young CY, Carey M (1980) J Phys Chem 84:1044
Porte G, Appell J (1981) J Phys Chem 85:2511
Attwood D, Elworthy PH, Kayne SB (1970) J Phys Chem 74:3529
Birdi KS (1972) Kolloid Z Z Polymere 250:731
Adams ET Jr (1965) Biochemistry 4:1646
Stigter D (1966) J Phys Chem 70:1323
Ozeki S, Ikeda S (1981) J Colloid Interface Sci 77:219
Porte G, Appell J, Poggi Y (1980) J Phys Chem 84:3105
Appell J, Porte G, Poggi Y (1982) J Colloid Interface Sci 87:492
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Imae, T., Ikeda, S. Rodlike micelles of dimethyloleylamine oxide in aqueous NaCl solutions, and their flexibility and size distribution. Colloid & Polymer Sci 262, 497–506 (1984). https://doi.org/10.1007/BF01412047
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DOI: https://doi.org/10.1007/BF01412047