Temperature dependent cubic and hexagonal close packing in micellar structures.
نویسندگان
چکیده
The interfacial structure and phase diagram of a micellar solution formed by the three block copolymer (EO20-PO70-EO20) also known as P123 solved in deuterated water close to a solid boundary is investigated with respect to temperature. We find a hysteretic behavior of the d-spacing of the micellar crystal and a spontaneous change in the lateral correlation length going hand in hand with a structural reorganization between cubic and hexagonal. The phase transitions may be initiated by a change in the shape of the micelles from spherical to elongated together with a minimization of the polymer water interface.
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عنوان ژورنال:
- Soft matter
دوره 10 42 شماره
صفحات -
تاریخ انتشار 2014