Sains Malaysiana 42(4)(2013): 509–514

Reactivity Ratio Determination of Newly Synthesized Copolymers from Glycidyl Methacrylate and Tetrahydrofurfuryl Acrylate

(Penentuan Nisbah Kereaktifan Kopolimer Baru yang Disintesis daripada Glisidil Metakrilat dan Tetrahidrofurfuril Akrilat)

Ahmad Danial Azzahari, Rosiyah Yahya* & Aziz Hassan

Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia

Diserahkan: 23 Jun 2011 / Diterima: 23 Mac 2012

ABSTRACT

Copolymers from different feed compositions of glycidyl methacrylate (GMA) and tetrahydrofurfuryl acrylate (THFA) were synthesized using free radical polymerization in toluene solution at 70±1°C using benzoyl peroxide (BPO) as initiator. The polymers were characterized by 1H NMR,13C NMR and DEPT spectroscopic techniques. The copolymer compositions were determined using 1H NMR analysis. Reactivity ratios for GMA and THFA were determined by the Kelen-Tudos, Tidwell-Mortimer and error-in-variables model methods. The results showed that all these copolymerizations were strictly linear systems describable by the Mayo-Lewis equation based on the terminal model and that accurate reactivity ratio data can be obtained.

Keywords: Copolymerization; glycidyl methacrylate; reactivity ratios; tetrahydrofurfuryl acrylate

ABSTRAK

Kopolimer daripada komposisi glisidil metakrilat (GMA) dan tetrahidrofurfuril akrilat (THFA) telah disintesis dengan menggunakan pempolimeran radikal bebas dalam larutan toluena pada 70±1°C menggunakan benzoyl peroksida (BPO) sebagai pemula. Kopolimer ini dicirikan oleh teknik spektroskopi1H NMR, 13C NMR dan DEPT. Nisbah kereaktifan untuk GMA dan THFA telah ditentukan oleh kaedah Kelen-Tudos, Tidwell-Mortimer dan model ralat-dalam-pemboleh ubah. Keputusan menunjukkan bahawa semua kopolimerisasi ini merupakan sistem linear yang boleh diterangkan oleh persamaan Mayo-Lewis berdasarkan model terminal dan data nisbah kereaktifan yang tepat boleh diperoleh.

Kata kunci: Glisidil metakrilat; kopolimerisasi; nisbah kereaktifan; tetrahidrofurfuril akrilat

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*Pengarang untuk surat-menyurat; email: rosiyah@um.edu.my