Ordering and Reverse Ordering Mechanisms of Triblock Copolymers in the Presence of Solvent
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Self-consistent field theory is used to study the self-assembly of a triblock copolymer melt. Two different external factors (temperature and solvent) are shown to affect the self-assembly. Either one or two-step self-assembly can be found as a function of temperature in the case of a neat triblock melt, or as a function of increasing solvent content (for non-selective solvents) in the case of a triblock-solvent mixture. For selective solvents, it is shown that increasing the solvent content leads to more complicated self-assembly mechanisms, including a reversed transition where order is found to increase instead of decreasing as expected, and re-entrant behavior where order is found to increase at first, and then decrease to a previous state of disorder.
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Russell B. Thompson, Kim Rasmussen, Panagiotis Maniadis, Edward M. Kober (2009). Ordering and Reverse Ordering Mechanisms of Triblock Copolymers in the Presence of Solvent. UWSpace. http://hdl.handle.net/10012/10309
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