The formation of novel ordered morphological structures from a microphase separation process enables diverse and expanding applications of block copolymers in areas such as nanolithography

drug delivery

and solar cells.How to manipulate the formation and stability of these structures is a key facter for application in the field of block copolymers.Recent reports from both experiments and theoretical works predicted that the polydispersity in block length distribution has a pronounced effect on many aspects in the phase behavior of block copolymers.Based on the introduction of developments in the experimental and theoretical works

this article gives a mini review especially on the recent developments in simulation works for polydisperse AB diblock and ABA triblock copolymers via the dissipative particle dynamics simulation techniques.An outlook of possible future researches on the issue of the polydispersity effects on more complex block copolymer systems is also given.