Polystyrene-polylactide bottlebrush block copolymer at the air/water interface

Lei Zhao, Myunghwan Byun, Javid Rzayev, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Hydrophobic ultrahigh molecular weight bottlebrush block copolymer and linear block copolymer of polystyrene-poly lactide (PS-PLA) were shown to be capable of forming Langmuir monolayers and exhibiting unique assembly behaviors at the air/water interface, which cannot be addressed by the classic theory of Langmuir monolayer of amphiphilic copolymers. New models were proposed to illustrate these intriguing surface behaviors. The self-assembled structure of Langmuir monolayer of bottlebrush block copolymer was determined by a combination of AFM measurement, thermal annealing, and enzymatic degradation experiment. To the best of our knowledge, this is among few studies on hydrophobic block copolymers at the air/water interface. As such, it not only complements the well-known models of self-assembly of amphiphilic block copolymers at the air/water interface but also expands the use of Langmuir-Blodgett (LB) technique to hydrophobic block copolymers.

Original languageEnglish
Pages (from-to)9027-9033
Number of pages7
Issue number22
StatePublished - 24 Nov 2009


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