The polyelectrolytes can become cross linked and unable to undergo {HEAD ~ further transitions} in {TAIL ~ porosity} 
in
The polyelectrolytes can become cross linked and unable to undergo { HEAD ~ further transitions } in { TAIL ~ porosity }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL