An alkyl methacrylate , or {TAIL ~ a combination} of {HEAD ~ alkyl methacrylates}, is a suitable second comonomer 
An alkyl methacrylate , or { TAIL ~ a combination } of { HEAD ~ alkyl methacrylates } , is a suitable second comonomer
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH