Origin of the thermoreversible fcc-bcc transition in block copolymer solutions.
نویسندگان
چکیده
The thermoreversible fcc-bcc transition in concentrated block copolymer micellar solutions is shown to be driven by decreases in the aggregation number as the solvent penetrates the core, leading to a softer intermicelle potential. Small-angle neutron scattering measurements in a dilute solution are used to quantify the temperature-dependent micellar characteristics. The observed phase boundary is in excellent agreement with recent simulations of highly branched star polymers.
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عنوان ژورنال:
- Physical review letters
دوره 92 14 شماره
صفحات -
تاریخ انتشار 2004