Mushroom-shaped Morphology Formed in Thin Films of Cylinder-forming Block Copolymer

作者：Gong Yu-mei^*; Song Jing-chuan; Zhang Gui-xia

来源：Chemical Research in Chinese Universities, 2011, 27(1): 150-153.

• Block copolymer
• Film
• Morphology

The morphology of the film of polystyrenc-block-poly(methyl methacrylate)(PS-b-PMMA) block copolymer having polystyrene(PS) cylinder forming composition spin-coated on a neutral brush modified silicon substrate has been investigated in this report. A mushroom-shaped morphology formed in the film with one period to two periods(L(0)-2L(0)) in thickness, which was spin-coated under a low humidity condition(RH ca.13%) and then thermally annealed at an extreme high temperature(230 degrees C). The results suggest that the spin-coating condition together with the confinement conditions plays a crucial role in the interesting morphology formation.

• 出版日期2011-1-25
• 单位大连工业大学