Comparison of simultaneous and pre-irradiation grafting of N-vinylpyrrolidone to cotton-cellulose

• Published in: Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 265; no. 1; pp. 217 - 220
• Main Authors: Takács, E., Mirzadeh, H., Wojnárovits, L., Borsa, J., Mirzataheri, M., Benke, N.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-12-2007
• Subjects: Cotton-cellulose; N-Vinylpyrrolidone; Pre-irradiation grafting; Simultaneous (mutual) grafting; Simultaneous (mutual) grafting; N-Vinylpyrrolidone; Pre-irradiation grafting; 06.60.Mr; Cotton-cellulose
• ISSN: 0168-583X; 1872-9584
• DOI: 10.1016/j.nimb.2007.08.098

Cotton-cellulose samples with modified surface properties were prepared by simultaneous and pre-irradiation grafting methods, respectively, using
N-vinylpyrrolidone monomer. In the mutual grafting experiments Mohr salt was used to avoid homopolymer formation. Under optimal conditions a few percent grafting was obtained by pre-irradiation grafting while in the case of mutual grafting the yields were one order of magnitude higher. By using the mutual method at higher doses the samples were covered by a thick layer while in the case of the pre-irradiation method the samples disintegrated. NVP grafting increased the water uptake ability of cellulose by a factor of 2–3.