Preparation of Neutral Wetting Brushes for Block Copolymer Films from Homopolymer Blends


  • The authors would like to thank the UW–NSF Nanoscale Science and Engineering Center (NSEC) (Grant No. DMR 0425880) and the Center on Functional Engineered Nano Architectonics (FENA) at UCLA for financial support.


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Neutral brush layers are prepared from a ternary blend of two low-molecular-weight homopolymers and their corresponding low-molecular-weight block copolymer. The presence of block copolymer effectively emulsifies the homopolymer mixtures on substrates and mediates their grafting ratios.