8353
Large polystyrene particles stabilized by poly ( acrylic acid ) ( PAA ) ( L - PS ( PAA ) ) ( as the core ) and small polystyrene particles stabilized by poly ( vinyl pyrrolidone ) ( PVP ) ( S - PS ( PVP ) ) ( as the corona ) were successfully used to prepare raspberry - like particles by a heterocoagulation technique utilizing the hydrogen bonding interaction between PAA and PVP .
 Chemical: polystyrene; Chemical: poly ( acrylic acid ); Chemical: PAA; Chemical: PS ( PAA ); Chemical: polystyrene; Chemical: poly ( vinyl pyrrolidone ); Chemical: PVP; Chemical: PS ( PVP ); Chemical: hydrogen; Chemical: PAA; Chemical: PVP
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: polystyrene; Chemical: poly ( acrylic acid ); Chemical: PAA; Chemical: PS ( PAA ); Chemical: polystyrene; Chemical: poly ( vinyl pyrrolidone ); Chemical: PVP; Chemical: PS ( PVP ); Chemical: hydrogen; Chemical: PAA; Chemical: PVP