16085
Hollow multilayer microcapsules made of aliphatic poly ( urethane - amine ) ( PUA ) and sodium poly ( styrene sulfonate ) ( PSS ) , templated on PSS - doped CaCO3 particles , are prepared for pH - / thermally responsive drug delivery .
 Chemical: aliphatic poly ( urethane - amine ); Chemical: PUA; Chemical: sodium poly ( styrene sulfonate ); Chemical: PSS; Chemical: PSS; Chemical: CaCO3
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: aliphatic poly ( urethane - amine ); Chemical: PUA; Chemical: sodium poly ( styrene sulfonate ); Chemical: PSS; Chemical: PSS; Chemical: CaCO3