13657
The controlled nature of the polymerization of the said chiral monomers in N , N - dimethylformamide ( DMF ) at 70 degrees C is evident from the formation of narrow polydisperse polymers , the molecular weight controlled by the monomer / chain transfer agent ( CTA ) molar ratio and the linear relationship between molecular weight and monomer conversion .
 Chemical: N , N - dimethylformamide; Chemical: DMF
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: N , N - dimethylformamide; Chemical: DMF