ISSN:
1435-1536
Keywords:
Key words Micelle
;
Monomolecular micelle
;
Polymolecular micelle
;
Atomic force microscopic
;
Polymeric surfactant
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The copolymer of acrylamide and octylphenylpoly(oxyethylene) acrylate macromonomer (AM-C8PhEO7Ac) was synthesized and characterized by IR and NMR spectroscopy. The molecular weight of the copolymer was determined to be 1.21 × 105 by static light scattering. The weight contents of AM and macromonomer were determined to be 67.8 and 32.2%, respectively, by elemental analysis. The micellar behavior of the copolymer in aqueous solution was studied by UV spectroscopy and atomic force microscopy (AFM). The molecules of AM-C8PhEO7Ac copolymer form monomolecular micelles in the concentration range 4 × 10−6 – 3 × 10−5 g/ml and polymolecular micelles at concentrations above 3 × 10−5 g/ml according to the UV analysis. The AFM images indicate that the monomolecular micelles are globular with diameters of 70 nm and have a narrow size distribution. The polymolecular micelles can be globular or cylindrical depending on the concentration, and have a wide size distribution.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003960050497
Permalink
