100.5 mhz spectrometers

The ¹H and ¹³C NMR spectra were recorded on JEOL 400 MHz and JEOL 100.5 MHz spectrometers (Tokyo, Japan) respectively; the solvent residual peak was used for referencing. The chemical shift values are on a δ scale, and the coupling constant values (J) are in Hertz. The HRMS data were collected on a Waters (Micromass) LCT1 using the ESI-TOF MS technique and Agilent 6210 ESI-TOF, Agilent Technologies, Santa Clara, CA, USA. Infrared spectra (IR) were recorded on a Perkin-Elmer FT-IR model 9 spectrometer. Molecular weight analysis ${\overline{M}}_w$ , ${\overline{M}}_n$ and the Polydispersity Index (PDI) of polyethyleneglycol (PEG) unit containing amphiphiles was done using an Agilent GPC system equipped with an Agilent 1100 pump and a refractive index detector, using PLgel columns, with THF as an eluent at a flow rate of 1.0 mL min⁻¹ using polystyrene standards.

The ¹H, ²D HETCOR, and ¹³C NMR spectra were recorded on a Jeol-400 MHz and Jeol-100.5 MHz spectrometers (Tokyo, Japan), respectively, using the solvent residual peak as a reference for calibrating the spectra. Deuterated solvents, e.g., CDCl₃, CD₃OD, and D₂O, were used for recording the NMR spectra, where chemical shift values are taken on δ scale and coupling constant value (J) are in Hz. Infrared spectra (IR) of all the polymers were recorded using a Perkin-Elmer 2000 FT-IR spectrometer (Singapore). The molecular weights ${\overline{M}}_{\mathrm{w}}$ , ${\overline{M}}_{\mathrm{n}}$ and Polydispersity Index (PDI) of the resulting polymers were determined using an Agilent GPC instrument (Santa Clara, CA, USA) equipped with Agilent 1100 pump, refractive index detector, and PL gel columns using THF at a flow rate of 1.0 mL/min and molecular weights were calibrated using polystyrene standards or pullulan standards.