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Ultrasonic Degradation of Poly(methyl Methacrylate-Co-Alkyl Acrylate) Copolymers

Ultrasonic Degradation of Poly(methyl Methacrylate-Co-Alkyl Acrylate) Copolymers

Vinod Kumar Konaganti, Giridhar Madras

Ultrason Sonochem. 2010 Feb;17(2):403-8.

PMID: 19775925

Abstract:

The copolymers, poly(methyl methacrylate-co-methyl acrylate) (PMMAMA), poly(methyl methacrylate-co-ethyl acrylate) (PMMAEA) and poly(methyl methacrylate-co-butyl acrylate) (PMMABA), of different compositions were synthesized and characterized. The effect of alkyl acrylate content, alkyl group substituents and solvents on the ultrasonic degradation of these copolymers was studied. A model based on continuous distribution kinetics was used to study the kinetics of degradation. The rate coefficients were obtained by fitting the experimental data with the model. The linear dependence of the rate coefficients on the logarithm of the vapor pressure of the solvent indicated that vapor pressure is the crucial parameter that controls the degradation process. The rate of degradation increases with an increase in the alkyl acrylate content. At any particular copolymer composition, the rate of degradation follows the order: PMMAMA>PMMAEA>PMMABA. It was observed that the degradation rate coefficient varies linearly with the mole percentage of the alkyl acrylate in the copolymer.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP24968794	Poly(acrylonitrile-co-methyl acrylate)		24968-79-4	Price
LS775116	Poly[(methyl methacrylate)-co-(9-H-carbazole-9-ethyl acrylate)]			Price

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