Grafting ofN,N′‐methylenebisacrylamide onto silk fibers using the vanadylacetylacetonate complex in aqueous medium

摘要

AbstractThe grafting ofN,N′‐methylenebisacrylamide (N,N′‐MBA) onto mulberry silk fibers is reported using vanadylacetylacetonate (VO(acac)2) complex under inert atmosphere at 50°C. The effect of various variables like, concentration ofN,N′‐MBA and VO(acac)2,acidity of the medium and the surfactants on the percentage grafting have been investigated. The higher rate of radical formation has been explained due to the coordination of π‐electrons of theN,N′‐MBA with the metal chelate which has assisted in the cleavage of MO bond to generate radical easily. A plausible mechanism for graft copolymerization involving cyclization ofN,N′‐MBA prior to the g