Journal
MACROMOLECULES
Volume 42, Issue 22, Pages 9027-9033Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ma9016345
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Funding
- National Science Foundation (NSF) [CBET-0844084]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0844084, 1153660] Funding Source: National Science Foundation
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Hydrophobic ultrahigh molecular weight bottlebrush block copolymer and linear block copolymer of polystyrene-polylactide (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.
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