22505
Poly ( N - isopropylacrylamide - co - N - hydroxyethylacrylamide ) ( poly ( NIPAAm - co - HEAAm ) ) was prepared as a new thermosensitive copolymer possessing a sharp phase transition around the human body temperature .
 Chemical: Poly ( N - isopropylacrylamide - co - N - hydroxyethylacrylamide ); Chemical: poly ( NIPAAm - co - HEAAm )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Poly ( N - isopropylacrylamide - co - N - hydroxyethylacrylamide ); Chemical: poly ( NIPAAm - co - HEAAm )