Fig. 2: VT-LCTEM and MALDI-IMS analysis of PDEGMA homopolymer. | Nature Communications

Fig. 2: VT-LCTEM and MALDI-IMS analysis of PDEGMA homopolymer.

From: Thermoresponsive polymer assemblies via variable temperature liquid-phase transmission electron microscopy and small angle X-ray scattering

Fig. 2

a Polymerization of DEGMA to form a PDEGMA homopolymer, where CPPA denotes 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid and AIBN denotes azobisisobutyronitrile. b VT-DLS of 5 mg mL− 1 PDEGMA in water heated from 25 °C (green) to 65 °C (red) and cooled to 25 °C (blue). f Single frames of VT-LCTEM experiment on 20 mg mL− 1 PDEGMA in water imaged at a flux of 0.8 e−Å− 2s− 1 and heated to 60 °C. c Plot showing survival (green square) or destruction (white square with red X) of PDEGMA homopolymer under different imaging and solvent conditions, as measured by MALDI-IMS. The screened additives were isopropanol (IPA), t-butanol (t-BuOH), dimethyl sulfoxide (DMSO), and deuterium oxide (D2O). d MALDI-IMS colormap of bottom chip with inset showing imaged window from VT-LCTEM experiment on PDEGMA with a mass filter of 4000 ± 200 m/z displayed as 0–100% of total intensity on a logarithmic scale. e Mass spectrum of imaged region. Source data are provided as a Source data file.

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