Graft copolymerization of glycidylmethacrylate onto modified nylon-6 fibers

The graft copolymerization of glycidylmethacrylate (GMA) onto modified nylon‐6 fibers containing polydiallyldimethylammonium chloride (PDADMAC) groups in the presence of (Cu 2+–K2S2O8) as a redox initiating system was carried out, with very high extent and almost without homopolymer formation. The m...

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Bibliographic Details
Published in:Journal of applied polymer science 2006-02, Vol.99 (3), p.613-618
Main Authors: Shalaby, S. E., Al-Balakocy, N. G., Abo El-Ola, S. M.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fibers and threads
Forms of application and semi-finished materials
glycidylmethacrylate (GMA)
graft copolymers
kinetics (polym.)
nylon
Polymer industry, paints, wood
quaternary ammonium groups (QAG)
Technology of polymers
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Summary:The graft copolymerization of glycidylmethacrylate (GMA) onto modified nylon‐6 fibers containing polydiallyldimethylammonium chloride (PDADMAC) groups in the presence of (Cu 2+–K2S2O8) as a redox initiating system was carried out, with very high extent and almost without homopolymer formation. The mechanism of the graft polymerization induced by this system was suggested. The rate of grafting was determined by varying the monomer, K2S2O8, and cupric ion concentrations as well as the amount of PDADMAC. The kinetic investigation revealed that the rate of grafting (Rp) of GMA onto modified nylon‐6 fibers is proportional to [GMA]1.83, [CuSO4·5H2O]0.46, [PDADMAC]0.4, and [K2S2O8]1.43. The overall activation energy was 134.7 kJ/mol. The fine structure and thermal properties of the grafted nylon‐6 fibers were investigated. investigated. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 613–618, 2006
ISSN:0021-8995
1097-4628
DOI:10.1002/app.21911