Incorporation of poly(sodium allyl sulfonate) branches on corn starch chains for enhancing its sizing properties: Viscosity stability, adhesion, film properties and desizability

The purpose of this work was to examine the influence of poly(sodium ally! sulfonate) (PSAS) branches on sizing properties of biological macromolecule (corn starch) for exploring a new anionic starch graft copolymer size (S-g-PSAS). Successful synthesis of S-g-PSAS samples was confirmed by energy dispersive X-ray spectrometer. Viscosity stability, adhesion, film properties and desizability of the samples were also investigated. Compared with HS, improved adhesion to cotton and viscose fibers, viscosity stability and desizability for S-g-PSAS as well as enhanced breaking elongation and bending endurance for S-g-PSAS film were exhibited. With the rise in grafting ratio, bonding forces to both fibers, viscosity stability and desizability of S-g-PSAS and its film properties such as breaking elongation and bending endurance, were gradually enhanced. These results indicated that S-g-PSAS showed potential for the use as a new starch-based size in the sizing of cotton and viscose warps. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The study aimed to investigate the influence of PSAS branches on the sizing properties of corn starch, leading to the development of a new starch-based size. Results showed that S-g-PSAS exhibited improved adhesion, viscosity stability, desizability, and film properties compared to HS, with enhancements in bonding forces, viscosity stability, and film properties at higher grafting ratios. This suggests potential for S-g-PSAS as a sizing agent for cotton and viscose fibers.