《Table 1 Compositions and blend periods of ternary blends with different molecular weight homopolyme

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《Effect of Ink Molecular Weights and Annealing Conditions on Molecular Transfer Printing》

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We used lamellae-forming ternary blends that contained90 wt%PS-b-PMMA，5 wt%PS-OH and 5 wt%PMMA-OH to explore these parameters for MTP.The molecular weights of PS-OH and PMMA-OH in the five blends ranged from3.5 kg·mol-1 to 56 kg·mol-1（Table 1）.The periods of block copolymer-homopolymer ternary blends，LB，increased with the increase of molecular weights of homopolymer inks[15，16].LB were calculated by fast Fourier transfer analysis of the SEM images of the perpendicularly oriented fingerprint structures from self-assembly of blend films on neutral brushes（Table 1）[17-25]，and the values agreed with those estimated from the empirical relationship reported by Liu et al[26].