Scenario

A polymer's value depends on how it ages and degrades — in service and at end of life. Mapping likely degradation pathways and estimating weathering durability gives an early read long before months of exposure testing.

Worked example. An outdoor component must survive UV exposure, and its end-of-life breakdown behaviour must be understood for a sustainability claim.

Agent workflow

1. Read the polymer structure and service environment.
2. Polymer degradation pathways — identify likely bond-cleavage / oxidation pathways and vulnerable groups.
3. Weathering & durability screen — estimate UV / hydrolytic durability.
4. Summarize the expected lifetime and end-of-life profile.

Demo output

A degradation profile: the likely breakdown pathways, the vulnerable structural features, and a weathering-durability estimate. The magic moment: the analysis pinpoints a photo-labile group whose replacement would extend service life.

Deterministic vs LLM

• Deterministic — the degradation-pathway and weathering analysis.
• LLM — the lifetime-and-end-of-life narrative.

Every result is a validated calculation. The agent reads and routes; the engine decides.

Limits

Screening-level forecasting, not a substitute for accelerated-aging or field exposure testing. It flags the risks; exposure trials confirm them.