STUDIES OF GRAFT COPOLYMERIZATION ONTO VISCOSE RAYON
نویسندگان
چکیده
منابع مشابه
Carbon disulphide poisoning in viscose rayon factories.
The manufacture of rayon by the viscose process exposes workers to the hazards of carbon disulphide (CS2) poisoning. When the viscose industry was started the toxicity of carbon disulphide was scarcely known among manufacturers, and the processes used were primitive; this resulted in many cases of CS2 poisoning in all those countries where viscose plants had been established. Since then, techni...
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The monomer, acrylonitrile, was graft copolymerized onto kappa-carrageenan (kC) using γ-rays as initiator. The reactions were carried out in a homogenous aqueous medium. After removal of the homopolymer, the graft copolymer was characterized by FTIR spectroscopy. A plausible mechanism of grafting has also been suggested. The effect of various factors affecting on grafting, i.e. dose of δ-rays a...
متن کاملPolyneuropathy induced by carbon disulphide in viscose rayon workers.
OBJECTIVES To understand the prevalence of polyneuropathy and correlations among the clinical manifestations, electrophysiological findings, and degree of exposure to carbon disulphide (CS2) in workers who were exposed to variable concentrations of CS2 in a viscose rayon factory. METHODS All the 163 workers received a detailed physical and neurological evaluation. Fixed point air samples were...
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Homogeneous graft copolymerization of methyl methacrylate (MMA) onto cellulose was carried out in N, N – dimethyl acetamide/LiCl (DMAc/LiCl) and dimethyl sulfoxide/ paraformaldehyde (DMSO/PF) solvent system taking ceric ammonium nitrate (CAN), benzoyl peroxide (BPO) and tin (II)-2ethyl hexanoate [Sn(Oct)2] as initiators. Different grafting parameters like graft yield (GY), grafting efficiency (...
متن کاملOptimized Conditions for Graft Copolymerization of Poly(acrylamide) onto Rubberwood Fibre
Graft copolymerization of acrylamide (Am) onto rubberwood fibre (RWF) was carried out by free radical initiation. Ceric ammonium nitrate was used as an initiator system. The effects of temperature, dose of initiator, ratio of monomer to fibre, and nitric acid concentration, on the grafting percentage were investigated. The optimum reaction temperature was found to be about 50°C for 4h and with ...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1965
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.21.311