Nature, 411, 1030–1034 (2001).

In Fig. 2a the pressure–area isotherms for polymers 2 and 3 were incorrectly labelled as ‘Polymer 3’ and ‘Polymer 2’, respectively.

Figure 2: Pressure–area (P–A) isotherms of polymers 1–4 and projected areas from molecular models.
figure 1

a, P–A isotherms. b, Molecular models of adjacent polymer packing. Top views of two repeating units of polymers 1 and 2 are shown. The calculated length of one repeating unit is 14 Å, which is used to calculate the area per repeating unit from the modelling.

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