3679
The theoretical calculation successfully predicted the experimental observation that the monomodal - poly ( dimethyl siloxane ) ( PDMS ) - brush - grafted TiO ( 2 ) nanoparticles can only be well dispersed within a small molecular weight silicone matrix .
 Chemical: poly ( dimethyl siloxane ); Chemical: PDMS; Chemical: TiO ( 2 ); Chemical: silicone
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 ( dimethyl siloxane ); Chemical: PDMS; Chemical: TiO ( 2 ); Chemical: silicone