Waterborne polyurethane‐based dye with covalently bonded to Disperse blue 60

Abstract

A series of sulfonated waterborne polyurethane-based dyes (DB60-SWPUs) with covalently bonded to different proportions of Disperse blue 60 (DB60) were prepared by a modified acetone process. The expected structures of DB60-SWPUs are characterized by Fourier transform infrared spectroscopy and 1 H-NMR spectra. The obtained DB60-SWPUs show high viscosity and intriguing storage stability. The fluorescent performances, thermal properties, and mechanical properties of DB60-SWPUs were characterized. Compared with DB60, the UV-vis spectra of DB60-WPUs have obvious hypochromic shift, and the fluorescence intensities are obviously enhanced. The migration rates of DB60-SWPUs are much lower than that of DB60. DB60-SWPUs have thermal migration resistance and excellent color fastness. The polyester fiber dyed by DB60-SWPUs has not only high color yield, good fracture strength, excellent breaking strength retention, but also good permeability and wrinkle resistance. Moreover, DB60-SWPUs are polymeric dyes with water as a solvent, which are especially suitable for environmental protection.

A Waterborne Polyurethane‐Based Dye with Green Fluorescence Excited by Visible Light

“…As a multi-functional environmental protection material, waterborne polyurethane-based fluorescent dye has attracted great attention. [13][14][15][16][17][18] Pilehkouhi M et al [19] prepared a waterborne polyurethane-based fluorescent dye by anchoring the fluorescent dye to the polyurethane chain. It was found that the fluorescence intensity was significantly enhanced by ultraviolet light, and the fluorescence intensity increased with increasing temperature.…”

“…Polyurethane‐based fluorescent dye is polymeric fluorescent dyes formed by anchoring monomeric fluorescent dye to polyurethane chains by chemical bonds. As a multi‐functional environmental protection material, waterborne polyurethane‐based fluorescent dye has attracted great attention [13–18] . Pilehkouhi M et al [19] .…”

A waterborne polyurethane‐based hybrid fluorescent silicon quantum dot

“…These shortcomings can be effectively solved and realized the polymerization of silicon quantum dots by chemically bonding silicon quantum dots to polymer chains and form polymer‐ based silicon quantum dots. Due to the advantages of adjustable structure, stable performance and diverse processing methods, polyurethane is more suitable to be used as quantum dot substrate and waterborne polyurethane has been widely concerned for its excellent environmental protection 33–39 …”

“…Due to the advantages of adjustable structure, stable performance and diverse processing methods, polyurethane is more suitable to be used as quantum dot substrate and waterborne polyurethane has been widely concerned for its excellent environmental protection. [33][34][35][36][37][38][39] Herein, A bottom-up method was used to synthesize amino-hydroxyl functionalized znoSiQDs by hydrothermal method with the synergistic action of citric acid, [40][41][42][43][44][45][46][47] ethylenediamine and ethylene glycol as silicon precursor. znoSiQDs-WPU with high transparency and fluorescence yield was prepared by modified acetone method.…”

Covalent polyester colouration by in situ chromophore creation

“…10 Covalent colouration of step-growth polymers may proceed using dye molecules that form the terminal group of polymers, 11 or by incorporating a difunctional dye within a step-growth poylmerisation. 12 However, such methods use a pre-formed dye molecule that may be transferred to coloured effluent and/or are restricted by the extent of dye incorporation possible. Consequently, straightforward methods to covalently include dye molecules within step-growth commodity polymers that lack pendant functional groups, in the absence of coloured effluent generation, are urgently sought.…”