Journal
LANGMUIR
Volume 22, Issue 15, Pages 6465-6468Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la060616n
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The conditions signaling the formation of bidisperse brushes in ordered block copolymers are investigated as an A(2) block is progressively grown onto an A(1)B diblock copolymer to form a series of molecularly asymmetric, isomorphic A(1)BA(2) triblock copolymers. Small-angle scattering and self-consistent field theory confirm that the microphase-ordered period decreases when the A(2) block is short relative to the A(1) block, but then increases as A(1)+ A(2) bidisperse brushes develop. The mechanical properties systematically follow the spatial distribution of the A(2) block.
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