28649
The synthesis and characterization of atactic and isotactic linear poly ( benzyl 1 , 2 - glycerol carbonate ) s are reported .
 Chemical: poly ( benzyl 1 , 2 - glycerol carbonate ) s
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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Answer:
 Chemical: poly ( benzyl 1 , 2 - glycerol carbonate ) s