Graft copolymerization of methyl methacrylate onto cellulose

Abstract

Methyl methacrylate has been grafted onto cellulose pulp using manganic ion as the initiator. The variable parameters studied are initiator and monomer concentrations, temperature and reaction time. The grafting efficiency, degree of grafting and frequency of grafting are found to be dependent on the above mentioned variables. ZUSAMMENFASSUNG:Mit Mangan-Ionen als Initiator wurde Methylmethacrylat a d Cellulose gepfropft. Als verinderliche Parameter wurden die Initiator-und Monomerkonzentration, die Temperatur und die Reaktionszeit untersucht. Es wurde gefunden, da13 der Wirkungsgrad der Pfropfreaktion, der Pfropfungsgrad und die Haufigkeit von den genannten Parametern abhangen.

Paper‐sheet biocomposites based on wood pulp grafted with poly(ε‐caprolactone)

“…One way to modify cellulose, or other polysaccharides, is to graft a polymer from or onto its surface. [13][14][15][16][17] Modification of cellulose via grafting has been widely studied with various monomers using conventional radical polymerization, [18][19][20] and also controlled polymerization techniques, such as atom transfer radical polymerization (ATRP), [21][22][23] ring-opening polymerization (ROP), [24][25][26][27] and reversible addition-fragmentation chain transfer polymerization (RAFT). 28,29 Further, for biocomposite applications, it is desirable to graft biodegradable monomers, such as lactones 30 and lactides.…”

Integrated Methodology for Economic Incentive Materials

“…The different factors affecting the graft copolymerization of AAm onto methylcellulose back-bone by using potassium persulphate as an initiator in aqueous solution were studied by Bardhan et al [14] and found that grafting increased steadily with increase in monomer / polymer ratio at a temperature up to 40°C. Graft copolymerization of MMA onto cellulose pulp was found to be dependent on the parameters like initiator and monomer concentrations, temperature and reaction time [15]. Grafting of vinyl monomers onto cellulose in the presence of sodium sulphate-sodalime glass as an initiator has been reported by Mansour and Nagaty [16].…”

Polymerization of methyl methacrylate initiated by the redox system Mn3/thioglycollic acid

“…Singh et a1. 22 and Namasivayam et al 23 have reported that manganic sulfate in an excess of sulfuric acid may form an effective redox system for grafting of poly( methyl methacrylate) onto cellulose and poly(viny1 alcohol) (PVA). Recently, Nayudamma et al 24 have reported the Mn3+-initiated graft copolymerization of vinyl monomers onto collagen.…”