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Journal of Applied Sciences

Year: 2002 | Volume: 2 | Issue: 3 | Page No.: 400-404
DOI: 10.3923/jas.2002.400.404
Differential Scanning Calorimetric Studies of Poly (Methyl Methacrylate Co-Styrene (MMA-Co-ST) Copolymers
S. Hamdan, D.ZM.A. Hashim, M. B. Ahmad and W.F.W. Abdullah

Abstract: Copolymers of methyl methacrylate (MMA) and styrene (ST) at different ratios (1:1, 2:1, and 1:2) were prepared with various percentage of ethylene glycol dimethacrylate (EGDMA) as cross-linking agent. The percentage of cold crystallization was estimated on the basis of exothermal energy. Copolymers with higher ratios of MMA produce higher percentage of crystallization, but surpassingly yield lower melting temperature. Although the percentage of crystallization increases with EGDMA content, the melting temperature decreases with higher content of EGDMA.

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How to cite this article
S. Hamdan, D.ZM.A. Hashim, M. B. Ahmad and W.F.W. Abdullah, 2002. Differential Scanning Calorimetric Studies of Poly (Methyl Methacrylate Co-Styrene (MMA-Co-ST) Copolymers. Journal of Applied Sciences, 2: 400-404.

Keywords: Cross-linking, cold crystallization and melting temperature

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