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Natural rubber/polystyrene segmented copolymers by gamma radiataion technique: Strutural characteristic studies

Rasit Ali, Roshafima and Mohd. Nor, Hussin and Mohd., Dahlan (2002) Natural rubber/polystyrene segmented copolymers by gamma radiataion technique: Strutural characteristic studies. In: 3rd National Symposium on Polymeric Materials 2002, 30-31 December 2002, UTM Skudai.

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Abstract

Natural rubber/polystyrene segmented copolymers were synthesized from acrylated liquid natural rubber as the soft segment and styrene monomer as the hard segment with various compositions of hard and soft segments by gamma radiation potvmensauo« Structural f eatures of the segmented copolymers f ormed were characterized by infrared and nuclear magnetic resonance spectroscopy analysis. The existence of absorption bands at 2962, 2928. 2855, 1664, 1450, 1378 and 838 em-I show major characteristics of natural rubber in the segmented copolymer. Peaks at 30'8 and 3024 em" indicated the existence of benzene aromatic ring. The absorption bands at 29/9 and 2848 cm,t show the asymmetry and symmetry stretching of -CHI 'for potystyrere The 'n and He NMR spectra a/so exhibit al/ the fe atures of aery/ated liquid natural rubber as the soft segment and polystyrene as the hard segment indicating that the copolymers made up ofthe two segments.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:segmented copolymers, liquid natural rubber, radiation patymenzation
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:1680
Deposited By: Dr Abdul Razak Rahmat
Deposited On:12 Mar 2007 04:58
Last Modified:21 Jul 2017 02:02

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