Ultraviolet‐radiation induced graft‐copolymerization of hydroxyethyl methacrylate onto cotton cellulose

Abstract

SYNOPSISTwo-hydroxyethyl methacrylate was grafted onto cotton cellulose using photoinitiation technique in the presence of the photoinitiator benzoin ethyl ether. Various parameters of the graft-copolymerization reaction, namely time, temperature, initiator, and monomer concentrations, were optimized using the grafting bath containing 10% methanol/acetone to dissolve the photoinitiator. The cotton sample, preswollen in sodium hydroxide, was subjected to grafting under optimized conditions. The preswollen samples showed higher graft add-on values at the equivalent monomer concentration. The moisture regain initially decreased at lower graft add-on levels and increased marginally with higher graft add-on. This behavior of the grafted substrate with respect to moisture regain has been explained.

Surface treatment of phosphate glass fibers using 2‐hydroxyethyl methacrylate: Fabrication of poly(caprolactone)‐based composites

“…Some researchers have successfully implanted PHEMA‐collagen (fibrillar) composite implants into bone (to the popliteal region of rats and to dog femurs) 15, 16. 2‐Hydroxyethyl methacrylate (HEMA), a vinyl monomer, is used as a coupling agent for natural fibers like jute, cotton, silk, etc 17–19. Fujiki et al20 used vinyl monomers as coupling agent for E‐glass fibers and found that graft copolymerization occurred from the surface of the fiber.…”

Photoinduced graft copolymerization of 2‐hydroxyethyl methacrylate on cotton cellulose in the presence of triethyleneglycol dimethacrylate

“…15 The parameters of grafting were optimized by varying them so as to obtain maximum possible graft add-on along with maximum graft yield. Thus, 0.3% (w/v) BEE, 3 h, and 50°C were found to be the optimum conditions.…”

Synthesis of graft copolymer of ethyl cellulose through living polymerization and its self-assembly

“…The graft copolymerization of varieties of monomers onto cellulose and cellulose derivatives has been carried out by different techniques such as irradiation with ultraviolet light (Shukla and Athalye 1992;Kubota et al 1995), gamma rays (Lu et al 2001), plasma ion beams (Sakata and Goring 1976) and by ceric (IV) ion initiation methods (Gurdag et al 2001;Gupta and Khandekar 2003). In these methods, the chain scission may occur and it is impossible to predetermine the length of the graft chains from the cellulose backbone because these methods are not controlled.…”