Ft ir 4100 infrared spectrometer

Field Emission Scanning Electron Microscopy (FESEM) micrographs were taken from a JEOL JSM-6700F microscope. Scanning Electron Microscopy (SEM) micrographs were obtained using a Hitachi SU3500 microscope. Infrared Spectroscopy (IR) spectra were taken by a Nicolet iS5 Attenuated Total Reflectance spectrometer. IR spectra taken using the KBr pellet method used a Jasco FT/IR-4100 infrared spectrometer. Thermogravimetric Analysis (TGA) was measured using a SII TG/DTA7200 instrument. Dynamic Light Scattering (DLS) spectra were taken by an Otsuka ELSZ-2000 Particle size Analyzer. Brunauer–Emmett–Teller Surface Area Analysis (BET) was taken from a Quantachrome NOVA 4200e Surface Area and Pore Size Analyzer. All samples were dried in vacuum at 70 °C for 24 h before BET analysis. X-ray photoelectron spectroscopy (XPS) spectra were taken by a JEOL JPS-9010MC XPS instrument with monochromatic AlKα-radiation. CasaXPS Version 2.3.15 was used for analyzing the C 1s narrow XPS profile. The water contact angle was controlled to drop 1 μm water by DropMaster DM 300. FAMAS was used to analyze the water contact angle images.

IR spectra: FT/IR-4100 Infrared Spectrometer (Jasco, Inc., Easton, MD, USA). NMR spectra were measured with Varian Unity 300 and Varian Inova 600 spectrometers (Varian, Palo Alto, CA, USA). Optical rotations: Polarimeter (Perkin-Elmer, model 343, Perkin-Elmer Life and Analytical Sciences, Shelton, CT, USA). Electron spray ionization mass spectrometry (ESI MS): Finnigan LCQ ion trap mass spectrometer coupled with a Flux Instruments (Basel, Switzerland) quaternary pump Rheos 4000 and an HP 1100 HPLC (Nucleosil column EC 125/2, 100-5, C 18) with autosampler (Jasco 851-AS, Jasco, Inc., Easton, MD, USA) and a diode array detector (Finnigan Surveyor LC System, San Jose, CA, USA). High-resolution mass spectra (HRMS) were recorded by ESI MS on a MicrOTOF mass spectrometer (Bruker Daltonics, Billerica, MA, USA) or a LTQ Orbitrap XL (Thermo Fisher Scientific wissenschaftliche Geräte GmbH, 20354-Hamburg, Germany), equipped with an HPLC instrument (Thermo Scientific Accela HPLC System Markham, Ontario, Canada); for further details, see mass spectra in Supporting Information, e.g., Figures S12 and S17. Rf values are listed in Table 1 and were determined on Polygram SIL G/UV254 (Macherey & Nagel, Düren, Germany). Size exclusion chromatography was performed on Sephadex LH-20 (Lipophilic Sephadex; Amersham Biosciences, Ltd., purchased from Sigma-Aldrich Chemie, Steinheim, Germany).