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The thermal behavior of the PI76-b-PFDMS76platelet-like crystals on silicon or HOPG supports was studied with a Multimode Nanoscope IIIa (Bruker/Veeco Santa Barbara, CA, USA) AFM equipped with a Digital Instruments Multimode Heater/Cooler accessory (Bruker/Veeco, Santa Barbara, CA, USA). The latter primarily consists of a sample heater and a probe holder with integrated cantilever heater. During the experiments the sample heater and probe holder were set to the same temperatures. The AFM was operated in tapping mode using silicon cantilevers with a resonance frequency and spring constant of w330 kHz and w42 N m1, respectively (PPP-NCH-W, Nanosensors, Wetzlar, Germany). Images under ambient conditions were taken at temperatures ranging from room temperature up to 160 C after 10 min of thermal equilibration. |
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