Catalyst stability and protection

Catalyst stability at elevated temperatures typically experienced during injection molding, resin curing cycles, and so on, is a necessity. Thermal decomposition of Grubbs catalysts in solution is known to occur at mildly elevated temperatures ( 55 C) [92], but solid-state catalyst particles protected from air, as is the case when embedded in self-healing materials, afford some shielding from thermal decomposition [27]. 

Occlusion of ruthenium alkylidenes in paraffin wax was originally developed to improve their shelf-life under ambient conditions [96], and this technique was 

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