Degradation property kinetics

Evaluation of Degradation in Museum Textiles Using Property Kinetics... 

By comparison, paper conservators have addressed many of these same issues and may have been somewhat more cause oriented in dealing with specific treatments, such as deacidification, designed to reduce the rate of degradation. Arney and Chapdelaine have widely used the concept of property kinetics that is borrowed from chemistry where it was developed (II). 

The degradation reactions involved in the breakdown of cellulose are clearly highly complex, and thus the use of the concept of property kinetics is a bold simplifying analogy. In property kinetics most of the degradation processes are assumed to be temperature dependent. In addition, most or all of these processes are assumed to affect some useful macroscopic property such as tensile strength so that the individual effects of these processes can be subsumed into one unified effect that obeys the Arrhenius equation. Thus property kinetic studies are necessarily empirical and show a much less obvious or demonstrable mechanistic connection than chemical kinetic studies between the presumed cause and the measured effect. 

To enhance the desirable properties of biodegradable polymers, it is essential to understand the factors affecting their degradation and control them in order to design a more efficient drug delivery system. Polymer composition, surface properties, crystallinity, etc., are important factors affecting biopolymer degradation properties, in terms of rate and kinetics. 

Carja lonela-Daniela, Serbezeanu Diana, Lisa Gabriela, Vlad-Bubulac Tachita, and Hamciuc Corneliu. Thermal degradation and kinetic studies of new flame-retardant phosphorus-containing polymers with liquid crystalline properties. Int. J. Polym. Anal. Charact. 19 no. 4 (2014a) 372-382. 

Extensive research has been conducted to determine the thermal-decomposition properties of polymers, the products of their degradation, and the kinetics involved in their reaction during pyrolysis (Ml). Complete comprehension of the mechanism involved in thermal degradation requires, among other facts, knowledge of these three fundamental aspects ... 

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