The phase behaviour in thin films of an asymmetric polystyrene-b- polymethylmethacrylate (PS-b-PMMA) block copolymer with a molecular weight of 39 kg mol-1 was assessed at a wide range of temperatures and times. Cylindrical PMMA structures featuring a diameter close to 10 nm and perpendicularly oriented with respect to the substrate were obtained at 180 ° C in relatively short annealing times (t ≤ 30 min) by means of a simple thermal treatment performed in a standard rapid thermal processing machine.
Thermally induced self-assembly of cylindrical nanodomains in low molecular weight PS-b-PMMA thin films / Seguini, G.; Giammaria, T. J.; Lupi, F. F.; Sparnacci, K.; Antonioli, D.; Gianotti, V.; Vita, Francesco; Placentino, I. F.; Hilhorst, J.; Ferrero, C.; Francescangeli, Oriano; Laus, M.; Perego, M.. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - 25:4(2014), pp. 045301-1-045301-6. [10.1088/0957-4484/25/4/045301]
Thermally induced self-assembly of cylindrical nanodomains in low molecular weight PS-b-PMMA thin films
VITA, Francesco;FRANCESCANGELI, ORIANO;
2014-01-01
Abstract
The phase behaviour in thin films of an asymmetric polystyrene-b- polymethylmethacrylate (PS-b-PMMA) block copolymer with a molecular weight of 39 kg mol-1 was assessed at a wide range of temperatures and times. Cylindrical PMMA structures featuring a diameter close to 10 nm and perpendicularly oriented with respect to the substrate were obtained at 180 ° C in relatively short annealing times (t ≤ 30 min) by means of a simple thermal treatment performed in a standard rapid thermal processing machine.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
