each of the polymer having repeating units represented by the chemical formula and the polymer having repeating units represented by {TAIL ~ the chemical formula} is a non halogenated polymer having a polymer structure including {HEAD ~ no halogen atom} 
each of the polymer having repeating units represented by the chemical formula and the polymer having repeating units represented by { TAIL ~ the chemical formula } is a non halogenated polymer having a polymer structure including { HEAD ~ no halogen atom }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD