Water-soluble quaternized copolymers as eco-friendly cationic modifiers of cotton fabrics for salt-free reactive dyeing applications

Abstract The modification of cotton fabrics with water-soluble cationic copolymers for salt-free dyeing applications reactive dyes is explored in the present work. To this end, a family bifunctional was designed through chemical poly(4-vinyl benzyl chloride), PVBC, triethylamine, TEAM. These were applied onto aqueous alkaline solutions at moderate temperature (60 °C). successful verified characterization modified samples Raman and XPS spectroscopy. Moreover, polymer coverage fabric order 0.1% (w/w) estimated following exhaustion UV–Vis spectroscopy used modification. kinetics followed evolution spectra fabrics, and, indirectly, dye dyebaths using dye, namely Novacron Ruby S-3B. All techniques claim that practically accomplished within first 1–2 h. double functionality study revealing both electrostatic binding covalent bonding anionic surface are expected to take place. As an important consequence, polymer-modified strongly dyed under eco-friendlier conditions, room temperature, contrast barely unmodified fabric. Graphical abstract