TY - JOUR
T1 - From homogeneous to heterogeneous nucleation of chain molecules under nanoscopic cylindrical confinement
AU - Woo, Euntaek
AU - Huh, June
AU - Jeong, Young Gyu
AU - Shin, Kyusoon
PY - 2007/3/28
Y1 - 2007/3/28
N2 - 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.
AB - 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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U2 - 10.1103/PhysRevLett.98.136103
DO - 10.1103/PhysRevLett.98.136103
M3 - Article
AN - SCOPUS:34047119183
VL - 98
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 13
M1 - 136103
ER -