Rapid directed self assembly of lamellar microdomains from a block copolymer containing hybrid

被引:28
|
作者
Cheng, Joy Y.
Pitera, Jed
Park, Oun-Ho
Flickner, Myron
Ruiz, Ricardo
Black, Charles T.
Kim, Ho-Cheol
机构
[1] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
[2] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
关键词
D O I
10.1063/1.2791003
中图分类号
O59 [应用物理学];
学科分类号
摘要
The directed self-assembly of a lamellar-forming hybrid block copolymer system comprising of a poly(styrene-b-ethylene oxide) and organosilicates (OSs) has been investigated. The addition of OS to the block copolymer is found to provide additional control over the persistence length of lamellae as well as the behavior of directed self assembly. Two OSs with different molecular weights and reactivities have been compared in this experiment. Both OSs yield the same local structure of lamellar domains but different degrees of mid- and long-range order. Longer correlation length and better alignment of lamellar domains were observed with the lower molecular weight, more reactive OS, which suggest a potential guidance for controlling over microdomains in block copolymer-containing hybrid systems. (c) 2007 American Institute of Physics.
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页数:3
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