Nonmonotonic incommensurability effects in lamellar-in-lamellar self-assembled multiblock copolymersстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Using the self-consistent-field theory numerical procedure we find that the period D of the
lamellar-in-lamellar morphology formed in symmetric multiblock copolymer melts
A_(mN/2) (B_(N/2)A_(N/2))_n B_(mN/2) at intermediate segregations changes nonmonotonically with an increase in the relative tail length m. Therewith D reveals, as a function of the Flory -parameter, a drastic change in the vicinity of the internal structure formation, which can be both a drop and a rise, depending on the value of m. It is argued that the unusual behavior found is a particular case of a rather general effect of the incommensurability between the two length scales that characterize the system under consideration.