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. 2018 Mar 5;10(3):267. doi: 10.3390/polym10030267

Figure 4.

Figure 4

Synthetic pathway for preparation of TMC using indirect trimethylation approach according to (1) Muzzarelli and Tanfani [50], ACN = acetonitrile and (2) Verheul et al. [51] avoiding O-methylation, NMP = N-methyl-2-pyrrolidinone.