Abstract
Atom transfer radical polymerization (ATRP) is a “living”/controlled radical polymerization, which is also used for surface grafting of various materials including textiles. However, the commonly used metal complex catalyst, CuBr, is mildly toxic and results in unwanted color for textiles. In order to replace the transition metal catalyst of surface-initiated ATRP, the possibility of HRP biocatalyst was investigated in this work. 2-hydroxypropyl methacrylate (HPMA) was grafted onto the surface of silk fabric using the horseradish peroxidase (HRP) biocatalyzed ATRP method, which is used to improve the crease resistance of silk fabric. The structure of grafted silk fabric was characterized by Fourier transform infrared spectrum, X-ray photoelectron spectroscopy, thermogravimetic analysis, and scanning electron microscopy. The results showed that HPMA was successfully grafted onto silk fabric. Compared with the control silk sample, the wrinkle recovery property of grafted silk fabric was greatly improved, especially the wet crease recovery property. However, the whiteness, breaking strength, and moisture regain of grafted silk fabric decreased somewhat. The present work provides a novel, biocatalyzed, environmentally friendly ATRP method to obtain functional silk fabric, which is favorable for clothing application and has potential for medical materials.
Highlights
Compared with the control silk fabric, additional peak appeared at 1726 cm−1 for HC-silk-g-PHPMA, which is characteristic absorption peak of carbonyl stretching vibration of ester, indicating that the hydroxypropyl methacrylate (HPMA)
Silk fabric was successfully grafted with 2-hydroxypropyl methacrylate (HPMA) using the Horseradish peroxidase (HRP)-mediated Atom transfer free radical polymerization (ATRP) method
The structure of control silk and grafted silk fabric was characterized by Fourier transform infrared, X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), TG, and Scanning Electron Microscopy (SEM)
Summary
HRP-catalyzed ATRP has been used for the active sites on the ferric protoporphyrin ring. [20] catalyzed N-isopropyl-acrylamide using activators generated by electron transfer for the ATRP (ARGET ATRP) method using HRP. The active group of HRP contains a ferric protoporphyrin structure to catalyze ATRP, which is. The active group of HRP contains a ferric protoporphyrin structure to catalyze ATRP, which is equivalent to the CuBr/ligand metal complex catalyst. The schematic of silk fabric grafted with equivalent to the CuBr/ligand metal complex catalyst. HRPtowas used the as wrinkle biocatalyst for the grafting of 2-hydroxypropyl (HPMA)this on silk surface improve resistance of silk fabric. The structure and(NaAsc) properties of the grafted silk fabric were agent in ARGET ATRP. The structure and properties of the grafted silk fabric were investigated
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have