14922
Biobased polyesters with composition - dependent thermomechanical properties : synthesis and characterization of poly ( butylene succinate - co - butylene azelate ) .
 Chemical: polyesters; Chemical: poly ( butylene succinate - co - butylene azelate )
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: polyesters; Chemical: poly ( butylene succinate - co - butylene azelate )