TY - GEN
T1 - Structural reorganization in thin films of high molecular weight block copolymer self-assembly
AU - Park, Sung Min
AU - Ahn, Hyung Ju
AU - Kim, Sang Woo
AU - Gong, Jin Sam
AU - Ryu, Du Yeol
PY - 2014
Y1 - 2014
N2 - We demonstrate the structural reorganization of microdomain arrays toward the perpendicular orientation of lamellar morphology in high-molecular-weight PS-b-PMMA films using a combinational approach by solvent-vapor and sequential thermal annealing processes. Solvent annealing with a PMMA-selective acetone vapor induced a cylindrical morphology. However, the sequential thermal annealing of block copolymer (BCP) films led to structural reorganization to an equilibrium lamellar morphology, where the lamellar microdomains were oriented to normal to the film surface. This technique suggests an efficient route for directing orientation and structural reorganization of microdomain arrays in the thin films of high-molecular-weight BCP self-assembly.
AB - We demonstrate the structural reorganization of microdomain arrays toward the perpendicular orientation of lamellar morphology in high-molecular-weight PS-b-PMMA films using a combinational approach by solvent-vapor and sequential thermal annealing processes. Solvent annealing with a PMMA-selective acetone vapor induced a cylindrical morphology. However, the sequential thermal annealing of block copolymer (BCP) films led to structural reorganization to an equilibrium lamellar morphology, where the lamellar microdomains were oriented to normal to the film surface. This technique suggests an efficient route for directing orientation and structural reorganization of microdomain arrays in the thin films of high-molecular-weight BCP self-assembly.
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U2 - 10.4028/www.scientific.net/AMR.853.53
DO - 10.4028/www.scientific.net/AMR.853.53
M3 - Conference contribution
AN - SCOPUS:84891953466
SN - 9783037859551
T3 - Advanced Materials Research
SP - 53
EP - 56
BT - Materials Science, Machinery and Energy Engineering
T2 - 2013 International Conference on Materials Science, Machinery and Energy Engineering, MSMEE 2013
Y2 - 24 December 2013 through 25 December 2013
ER -