Journal
POLYMER DEGRADATION AND STABILITY
Volume 91, Issue 5, Pages 1036-1044Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2005.07.022
Keywords
polymer degradation; accelerated aging; initiation process; material interaction; infectious agent
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A novel dual stage chemiluminescence detection system incorporating individually controlled hot stages has been developed and applied to probe for material interaction effects during polymer degradation. Utilization of this system has resulted in experimental confirmation for the first time that in an oxidizing environment a degrading polymer A (in this case polypropylene, PP) is capable of infecting a different polymer B (in this case polybutadiene, HTPB) over a relatively large distance. In the presence of the infectious degrading polymer A, the thermal degradation of polymer B is observed over a significantly shorter time period. Consistent with infectious volatiles from material A initiating the degradation process in. material B it was demonstrated that traces (micrograms) of a thermally sensitive peroxide in the vicinity of PP could induce degradation remotely. This observation documents cross-infectious phenomena between different polymers and has major consequences for polymer interactions, understanding fundamental degradation processes and long-term aging effects under combined material exposures. Published by Elsevier Ltd.
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