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Hexagonal to Cubic Phase Transition in the $D_2O$-Induced Reverse Micellar Solution of a PEO-b-PPO-b-PEO Block Copolymer  

Kim, Do-Hyun (Department of Polymer Science and Engineering, Inha University)
Ko, Yoon-Soo (Department of Polymer Science and Engineering, Inha University)
Kwon, Yong-Ku (Department of Polymer Science and Engineering, Inha University)
Publication Information
Macromolecular Research / v.16, no.1, 2008 , pp. 62-65 More about this Journal
Abstract
The morphology of the $D_2O$-induced reverse micellar structure of an amphiphilic block copolymer of poly( ethylene oxide )-b-poly(propylene oxide )-b-poly( ethylene oxide )($EO_{76}PO_{29}EO_{76}$) was investigated in hydrophobic media by small angle neutron scattering (SANS). Increasing $D_2O$ in the styrene/divinylbenzene solution of $EO_{76}PO_{29}EO_{76}$ led to a change in morphology of the reverse micelles from a short range ordered molecular aggregate to a hexagonally arranged micelle, and further to a spherical micelle.
Keywords
reverse micelles; amphiphilic block copolymer; small angle neutron scattering;
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