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CLC number: O647
On-line Access: 2024-08-27
Received: 2023-10-17
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Effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide-ethylene oxide block copolymers
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ZHANG Zhi-guo, YIN Hong. Effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide-ethylene oxide block copolymers[J]. Journal of Zhejiang University Science B, 2005, 6(3): 219-221.
@article{title="Effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide-ethylene oxide block copolymers",
author="ZHANG Zhi-guo, YIN Hong",
journal="Journal of Zhejiang University Science B",
volume="6",
number="3",
pages="219-221",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0219"
}
%0 Journal Article
%T Effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide-ethylene oxide block copolymers
%A ZHANG Zhi-guo
%A YIN Hong
%J Journal of Zhejiang University SCIENCE B
%V 6
%N 3
%P 219-221
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0219
TY - JOUR
T1 - Effect of polyoxypropylene chain length on the critical micelle concentration of propylene oxide-ethylene oxide block copolymers
A1 - ZHANG Zhi-guo
A1 - YIN Hong
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 3
SP - 219
EP - 221
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B0219
Abstract: In this work, the surface activity of block copolymer nonionic surfactants (RPE) has been determined, i.e., critical micelle concentration (CMC), surface excess concentration (Γ), surface area demand per molecule (A), surface tension at CMC (γCMC). A linear decrease of ln[CMC] vs number of oxypropylene units in copolymer molecule was observed. The change in the work of cohesion per oxypropylene group when passing from molecular into micellar state, calculated from the Shinoda equation, was 0.43kT for the studied compounds.
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