The development of durable dyed fabrics from safer materials are of interest for numerous military and civilian applications. Chlorophyll is a pigment which is available in large quantities from natural sources such as plants and green algae. However, the water insolubility and instability at high temperature renders this pigment not suitable for coating applications. Here we report a method to encapsulate chlorophyll using cyclodextrins with the goal of functionalization of the encapsulated pigment onto surface of fabrics like Cotton and Nylon-Cotton blends. Chlorophyll-cyclodextrin interaction helps improve not only the water solubility of the pigment but also its photo and thermal stability. The surface characterization of textile was performed using Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDX), and Fourier-Transform Infrared Spectroscopy (FTIR). Stability and spectral characteristics of the pigment were also evaluated. Thermogravimetric Analyzer (TGA) was used to study the temperature stability of the pigment. This research opens new possibilities that allows use of safer, low cost and durable natural dyes for fabric coatings.  <br/> <br/>

Bioinspired coatings based on naturally occurring chlorophyll

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.