Straight or branched alkoxy groups having {TAIL ~ from 1 to 6 carbon atoms} include, for example, {HEAD ~ methoxy}, ethoxy, n propoxy, tert butoxy, and pentyloxy 
Straight or branched alkoxy groups having { TAIL ~ from 1 to 6 carbon atoms } include , for example , { HEAD ~ methoxy } , ethoxy , n propoxy , tert butoxy , and pentyloxy
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH