Publication: Microphase separation induced by differential interactions in diblock copolymer/homopolymer blends

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Title	Microphase separation induced by differential interactions in diblock copolymer/homopolymer blends
Authors/Editors*	J. Zhou and A.-C. Shi
Where published*	Journal of Chemical Physics
How published*	Journal
Year*	2009
Volume	130
Number
Pages	234904
Publisher
Keywords
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Abstract	Phase behavior of diblock copolymer/homopolymer blends AB/C is investigated theoretically. The study focuses on a special case where all three binary pairs, A/B, B/C, and C/A, are miscible. Despite the miscibility of the binary pairs, a closed-loop immiscible region exists in the AB/C blends when the A/C and B/C pair interactions are sufficiently different. Inside the closed-loop, the system undergoes microphase separation, exhibiting different ordered structures. This phenomenon is enhanced when the homopolymer C interacts more strongly to one of the blocks A or B.