Block copolymer surfactants (RBE) obtained by the addition of ethylene oxide to n-butyl, n-hexyl, n-octyl, and n-decyl ethers of mono- to tetrabutylene glycol are described. The surface activity of these nonionic surfactants has been determined, i.e., critical micelle concentration (CMC), surface ex
The effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide—ethylene oxide block copolymers
✍ Scribed by Stanislaw Kucharski; Jan Chlebicki
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 245 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0021-9797
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pend strongly on the copolymer composition, with higher The cloud points of aqueous solutions of eight ethylene oxide values for those containing a larger percentage of EO units. (EO)/propylene oxide (PO) triblock copolymers were measured Typically, copolymers with more than 70% EO present cloud in
In addition to associating into (''normal'') micelles in aqueous blocks (1). Many of these copolymers associate in aqueous solutions, amphiphilic polyoxyalkylene block copolymers can form solutions to form spherical micelles (with a ''core'' made ''reverse'' micelles in organic solvents at sufficien