A Kinetic Study of Homogeneous Bulk Polymerization of Ethyl Methacrylate Initiated by Benzoyl Peroxide and an N, N^{\prime} -dimethylaniline Redox Pair

Authors

Serap ŞENEL
Belma IŞIK-YÜRÜKSOY
Olgun GÜVEN

DOI

-

Abstract

The homogenous bulk polymerization of ethyl methacrylate (EMA) was studied using benzoyl peroxide (BPO) and an N,N^{\prime}-dimethylaniline (DMA) redox pair with the dilatometric method. The half-order dependence of the polymerization rate upon both the BPO and DMA concentrations was obtained. The overall activation energy of the polymerization was found to be between 32.3-55.3 kJ/mole for different initial molar ratios of the redox pair. A retaring effect was observed at lower polymerization temperatures for low concentrations of BPO. The formation of reddish colored polymers at higher DMA concentrations was explained by the adsorption of adduct formed between DMA radicals.

First Page

62

Last Page

68

Recommended Citation

ŞENEL, Serap; IŞIK-YÜRÜKSOY, Belma; and GÜVEN, Olgun (1996) "A Kinetic Study of Homogeneous Bulk Polymerization of Ethyl Methacrylate Initiated by Benzoyl Peroxide and an N, N^{\prime} -dimethylaniline Redox Pair," Turkish Journal of Chemistry: Vol. 20: No. 1, Article 8. Available at: https://journals.tubitak.gov.tr/chem/vol20/iss1/8