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The polymer , poly ( ethylene glycol ) - poly ( serinol hexamethylene urethane ) ( ESHU ) , forms a physical gel when heated to 37 degrees C and shows good cytocompatibility with ocular cells .
 Chemical: poly ( ethylene glycol ) - poly ( serinol hexamethylene urethane ); Chemical: ESHU
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 ( ethylene glycol ) - poly ( serinol hexamethylene urethane ); Chemical: ESHU