Two-dimensional polymeric materials (2DPMs) with unique structural and functional properties are typically crosslinked for stability. Here, large-area noncrosslinked 2DPMs were exfoliated from lamellar films of poly(N-dodecyl acrylamide) (pDDA), which forms nanophase-separated lamellae via segregation of hydrophilic and hydrophobic segments. Poor-solvent exfoliation using hexane, ethyl acetate, or 2-propanol produced micrometer-scale monolayer nanosheets, whereas methanol dissolved the polymer. AFM and TEM confirmed nanosheet morphology, and spin-transferred films displayed dendritic or spiderweb-like networks dependent on solvent and centrifugal forces, offering a simple, scalable route to morphology-controlled noncrosslinked 2DPMs.
- Mizuki Ohke
- Yuya Ishizaki-Betchaku
- Jun Matsui
