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Table 1 Samples with various molecular weights of PS-b-PEO and its blending ratio with TTIP

From: TiO2 Nanotube Arrays: Fabricated by Soft–Hard Template and the Grain Size Dependence of Field Emission Performance

Sample name S1 S2 S3 S4 S5
PS-PEO 58,500–37,000 58,500–37,000 58,500–37,000 60,000–14,500 58,600–71,000
TTIP/PEOa 3.87 5.16 10.32 3.64 3.70
Grain size (nm)b 10.7 12.5 14.9 11.8 13.5
  1. aTTIP/PEO represents the weight ratio between TTIP and PEO in PS-b-PEO
  2. bGrain sizes were calculated from XRD profiles shown in Fig. 2