11359
The mechanism of action in vivo was elucidated using PEIs with decreased numbers of primary amine residues , resulting from ethylene carbonate treatment , and polyallylamine , a linear polyamine consisting of primary amines .
 Chemical: PEIs; Chemical: primary amine; Chemical: ethylene carbonate; Chemical: polyallylamine; Chemical: polyamine; Chemical: primary amines
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: PEIs; Chemical: primary amine; Chemical: ethylene carbonate; Chemical: polyallylamine; Chemical: polyamine; Chemical: primary amines