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Then , the PEG - grafted cellulose nanofibril / chloroform dispersion and poly ( l - lactide ) ( PLLA ) / chloroform solution were mixed , and the PEG - grafted cellulose nanofibril / PLLA composite films with various blend ratios were prepared by casting the mixtures on a plate and drying .
 Chemical: PEG; Chemical: chloroform; Chemical: poly ( l - lactide ); Chemical: PLLA; Chemical: chloroform; Chemical: PEG; Chemical: PLLA
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: PEG; Chemical: chloroform; Chemical: poly ( l - lactide ); Chemical: PLLA; Chemical: chloroform; Chemical: PEG; Chemical: PLLA