Polyphosphazenes are a class of hybrid organic-inorganic polymers with two organic side groups linked to the polymer backbone. These side groups ultimately determine the final polymer properties, which allows for their use in a variety of applications. One of the main limitations in polyphosphazene synthesis is achieving full substitution, especially when bulky side groups such as phenoxy and phenyl-phenoxy are used. To overcome this, small nucleophiles, such as ethoxy, could be used to finish the reaction. In doing so the hydrolysis properties are changed and the final application is ultimately affected. Typically, aryloxy substituted polyphosphazenes exhibit hydrolytic stability, but the hydrolysis properties of ethoxy are unknown. Due to its small size, ethoxy may not be able to provide sufficient backbone protection under hydrolysis conditions. The objective of this research is to examine the hydrolytic susceptibility of ethoxy containing polyphosphazenes to determine their potential applications. Polymer synthesis and hydrolysis results will be described. 

Hydrolytic susceptibility examination of ethoxy containing polyphosphazenes

246th National Meeting (2013)

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