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Updated: Jul 15, 2026

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
From homogeneous to heterogeneous nucleation of chain molecules under nanoscopic cylindrical confinement
Euntaek Woo1, June Huh, Young Gyu Jeong
1School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, South Korea.
Abstract:
The crystallization of monodisperse linear polyethylene confined in nanoporous alumina is investigated with the calorimetric measurements. We observe a drastic change in crystallization behavior, specifically nucleation, with a decrease in the pore diameter. Crystallization in relatively larger pores with the diameters of 62 and 110 nm occurs at lower temperatures within a very narrow range, whereas crystallization in smaller pores with diameters of 15-48 nm occurs at a higher and broad range of temperatures. Nucleation and crystallization kinetics in nanopores is discussed based on classical nucleation theory as well as the Avrami theory.
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