Triblock terpolymer core-shell cylinder

Mogi et al. [138] and Gido et al. [143] studied triblock terpolymers based on polystyrene (S), polyisoprene (I), and poly(2-vinylpyridine) (VP) with different block sequences. The difference in block sequence resulted in a different morphology for a similar overall composition of the systems. While polyisoprene-block-polystyrene-block-polyvinylpyridine I-S-VP with similar amounts of all three components forms lamellar stacks (Figure 4(a)) [138], polystyrene-block-polyisoprene-block-polyvinylpyridine S-I-VP forms hexagonally packed core-shell cylinders (Figure 4(b)) [143]. 

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