Studied by dynamic light scattering (DLS) and transmission electron microscopy (TEM) is the coaggregation of poly( tert -butyl acrylate)- block -poly(2-cinnamoyloxyethyl methacrylate), PtBA−PCEMA, and polystyrene- block -poly(2-cinnamoyloxyethyl methacrylate), PS−PCEMA, in mixtures of chloroform and hexane, where hexane is a precipitant for PCEMA and PS but a good solvent for PtBA. To ensure coaggregation, the PCEMA blocks in the different diblocks were tagged by the H-bonding DNA base pair thymine and adenine. Coaggregation of the associating diblocks resulted in interesting block copolymer aggregation behavior and morphologies.
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Yan et al. (2006) studied this question.
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