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Browsing by Author "Vargha, V"

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Biodegradable polymers by reactive blending trans-esterification of thermoplastic starch with poly (vinyl acetate) and poly (vinyl acetate-co-butyl acrylate)

Author: Vargha, V ; Truter, P Date: Apr 2005 Wheat starch was reacted with poly (vinyl acetate) and with poly (vinyl acetate-co-butyl acrylate) in an internal mixer at 150 _C in the absence of catalyst, and in the presence of sodium carbonate, zinc-acetate and titanium (IV) but oxide. ... Read more
Development of thermoresponsive poly(propylene-g-N-isopropylacrylamide) non-woven 3D scaffold for smart cell culture using oxyfluorination-assisted graft polymerisation

Author: Chetty, AS ; Vargha, V ; Maity, Arjun ; Moolman, FS ; Rossouw, C ; Anandjiwala, R ; Boguslavsky, L ; Mancama, Dalubuhle T ; Focke, WW Date: Feb 2013 Growing cells on 3D scaffolds is far superior to the conventional 2D monolayer culture method. In this study, a novel 3D thermoresponsive poly(propylene-g-N-isopropylacrylamide) (PP-g-PNIPAAm) nonwoven fabric (gNWF) was developed for cell ... Read more
Functionalisation of polypropylene non-woven fabrics (NWFs): Functionalisation by oxyfluorination as a first step for graft polymerisation

Author: Vargha, V ; Chetty, A ; Sulyok, Z ; Mihaly, J ; Keresztes, Z ; Toth, A ; Sajo, I ; Korecz, L ; Anandjiwala, R ; Boguslavsky, L Date: Oct 2011 Surface oxyfluorination had been carried out on polypropylene non-woven fabric (PP NWF) samples of different morphologies and pore sizes. The modified surfaces were characterised by Attenuated Total Reflectance Fourier Transform InfraRed ... Read more
Smart 3D cell culture using a thermoresponsive PP nonwoven scaffold

Author: Chetty, A ; Rossouw, C ; Ntsangani, L ; Moolman, S ; Van Wyk, K ; Mancama, Dalubuhle T ; Anandjiwala, R ; Boguslavsky, L ; Vargha, V Date: May 2011 In this paper the grafting method will be described and characterisation of the smart PP-g-PNIPAAm scaffolds by fourier-transform infrared, scanning electron microscopy, x-ray photoelectron spectroscopy, differential scanning calorimetry, ... Read more
A versatile characterization of poly(N-isopropylacrylamideco-N,N!-methylene-bis-acrylamide) hydrogels for composition, mechanical strength, and rheology

Author: Chetty, A ; Kovács, J ; Sulyok, Zs ; Mészáros, A ; Fekete, J ; Domján, A ; Szilágyi, A ; Vargha, V Date: Jan 2013 Poly(N-isopropylacrylamide-co-N,N"-methylene-bisacrylamide) (P(NIPAAm-co-MBA)) hydrogels were prepared in water using redox initiator. The copolymer composition at high conversion (> 95%) was determined indirectly by HPLC (high performance ... Read more

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Browsing by Author "Vargha, V"

Browsing by Author "Vargha, V"

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