{HEAD ~ The oil} 4, wherein {TAIL ~ the polyol} is selected from the group consisting of 1,3 propanediol, 1,3 butanediol, 2,3 butanediol, 2 ethyl 1,3 propanediol, 2 ethyl 2 butyl 1,3 propanediol, neopentyl glycol, 2,2,4 trimethyl 1,3 pentanediol, trimethylolpropane, and pentaerythritol 
wherein
{ HEAD ~ The oil } 4 , wherein { TAIL ~ the polyol } is selected from the group consisting of 1,3 propanediol , 1,3 butanediol , 2,3 butanediol , 2 ethyl 1,3 propanediol , 2 ethyl 2 butyl 1,3 propanediol , neopentyl glycol , 2,2,4 trimethyl 1,3 pentanediol , trimethylolpropane , and pentaerythritol
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH