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Hydroxyl terminated poly(styrene‐r‐methyl methacrylate) (P(S‐r‐MMA)) random copolymers (RCPs), with molecular weight (Mn) spanning from 1700 to 69 000 g mol−1 and equal styrene unit content, were grafted at different temperatures onto a silicon oxide surface and subsequently used to study the orientation of nanodomains with respect to the substrate, in cylinder forming polystyrene‐b‐poly(methyl methacrylate) (PS‐b‐PMMA) block copolymer thin films. When the grafting temperature increases from 250 to 310 °C, a substantial increase in the grafting rate is observed. In addition, an increase in the surface neutralization efficiency occurs thus resulting in an increase in the robustness of the surface neutralization step. These data revealed that the neutralization of the substrate is the result of a complex interplay between RCP film characteristics and underlying substrate properties that can be finely tuned by …
John Wiley & Sons, Ltd
Publication date: 
1 Jan 2017

Katia Sparnacci, Diego Antonioli, Michele Perego, Tommaso Jacopo Giammaria, Gabriele Seguini, Federico Ferrarese Lupi, Giampaolo Zuccheri, Valentina Gianotti, Michele Laus

Biblio References: 
Volume: 66 Pages: 459-467
Polymer International