The method 14 which includes selecting an elastomer from the group of elastomers consisting of nitrile butadiene rubber, {HEAD ~ fluoro elastomers}, including perfluoroalkyoxy polymers, and {TAIL ~ ethylenepropylenediene monomer} 
including
The method 14 which includes selecting an elastomer from the group of elastomers consisting of nitrile butadiene rubber , { HEAD ~ fluoro elastomers } , including perfluoroalkyoxy polymers , and { TAIL ~ ethylenepropylenediene monomer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL