It is considered that bonding between the FLC material and the alignment layers can be effected by reaction between olefinic groups in the alignment layer and keytones, {HEAD ~ pyrroles} or,mercaptans in {TAIL ~ the liquid crystal molecules} 
It is considered that bonding between the FLC material and the alignment layers can be effected by reaction between olefinic groups in the alignment layer and keytones , { HEAD ~ pyrroles } or , mercaptans in { TAIL ~ the liquid crystal molecules }
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 HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL