9662
This process produces two - dimensional , homogeneous , rigid PMMA layers , which mimic commercial acrylic resins in a QCM - D experiment .
 Chemical: PMMA; Chemical: acrylic
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: PMMA; Chemical: acrylic