Figure 5.
Effect of irradiation (300 h) on the index of the C=O group (IC=O) of PVC films containing tin(IV) compounds 1–4. PVCi and PVCii are the IOH of the blank PVC film before and after irradiation, respectively.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.