Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

Surface Functionalization of Cotton Fabrics by Photo-Grafting for pH Sensing Applications

Blog Article

This paper investigates the photo-grafting of a halochromic molecule on cotton fabric surfaces.Nitrazine yellow Jugs (NY) dye was modified with a methacrylate moiety (GMA) obtaining a photo-reactive dye (GMA-NY), which was covalently grafted onto the cellulosic substrate by means of UV irradiation.The photo-grafting reaction was studied by FT-IR spectroscopy, while the pH response of the functionalized fabric was evaluated at different pH conditions (i.e.

, acidic and alkaline conditions) both in wet and vapor environments by spectrophotometric analyses.The results showed that the photo-grafting of the modified dye onto the fabric was successful: treated Heart Puzzle Bracelet Gift Box cotton clearly changed color when subjected to different pH.It was thus demonstrated that the GMA-NY dye, photo-grafted on cotton, can successfully impart pH sensing properties to the fabric, which can therefore find numerous applications in the area of smart textiles.