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Please use this identifier to cite or link to this item: http://purl.org/purl/4658

Title: High Styrene–Rubber Ionomers, an Alternative to Thermoplastic Elastomers
Authors: Thomas, Kurian
Jacob, Samuel
Thommachan, Xavier
Keywords: ionomers
glass transition
mechanical properties
Issue Date: Dec-2001
Publisher: Wiley Periodicals
Abstract: High styrene rubber ionomers were prepared by sulfonating styrene–butadiene rubber of high styrene content (high styrene rubber) in 1,2-dichloroethane using acetyl sulfate reagent, followed by neutralization of the precursor acids using methanolic zinc acetate. The ionomers were characterized using X-ray fluorescence spectroscopy, Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR), dynamic mechanical analysis (DMA), and also by the evaluation of mechanical properties. The FTIR studies of the ionomer reveal that the sulfonate groups are attached to the benzene ring. The NMR spectra give credence to this observation. Results of DMA show an ionic transition (Ti) in addition to glass–rubber transition (Tg). Incorporation of ionic groups results in improved mechanical properties as well as retention of properties after three cycles of processing
Description: Journal of Applied Polymer Science, Vol. 85, 2294–2300 (2002)
URI: http://dyuthi.cusat.ac.in/purl/4658
Appears in Collections:Dr.Thomas Kurian

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