id	keyword
fis-2724	water
fis-2724	pmma
fis-2724	aging
fis-2724	polymer
fis-2724	doi
fis-2724	months
fis-2724	behavior
fis-2724	radiations
fis-2724	fig
fis-2724	degradation
fis-2724	journal
fis-2724	properties
fis-2724	immersion
fis-2724	tensile
fis-2724	exposure
fis-2724	drinking
fis-2724	solar
fis-2724	seawater