Molecular-Curvature-Induced Spontaneous Formation of Curved and Concentric Lamellae through Nucleation Academic Article uri icon

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abstract

  • Spontaneous formation of concentric lamellae was observed in self-assembling giant surfactants consisting of a fluorinated polyhedral oligomeric silsesquioxane (FPOSS) head and flexible polymer tail(s). Owing to the asymmetrical sizes of the head and tail blocks and the rectangular molecular interface, the giant surfactants assumed a truncated-wedge-like molecular shape, which induced morphological curvature during self-assembly, thus resulting in the formation of curved and concentric lamellae. These curved/concentric lamellae were observed in FPOSS-based giant surfactants with different architectures and compositions. The spontaneous curvature formation not only promotes our fundamental understanding of assembly principles, but also provides a promising and efficient approach to the fabrication of a wide range of high-performance devices.

authors

  • Dong, Xue-Hui
  • Ni, Bo
  • Huang, Mingjun
  • Hsu, Chih-Hao
  • Bai, Ruobing
  • Zhang, Wen-Bin
  • Shi, An-chang
  • Cheng, Stephen ZD

publication date

  • February 12, 2016