2,2,2-Trifluoroethyl methacrylate monomer

Table 1 shows the Q and e values and the monomer reactivity ratios rj and T2 for the radical copolymerization process. Since the monomer reactivity ratios between negatively birefringent methyl methacrylate (MMA) and positively birefringent 2,2,2-trifluoroethyl methacrylate (3FMA) and benzyl methacrylate (BzMA) are nearly equal to unity, these monomers can be randomly copolymerized, resulting in homogeneous and transparent copolymers. 

Trifluoroethyl methacrylate (MATRIF) and 2,2,2-trifluoroethyl acrylate (ATRIF) monomers are commercially available products, but they can be synthesized from methacryloyl or acryloyle chloride and 2,2,2-trifluoroethanol in the presence of triethylamine as a base [41]. The purification of ATRIF and MATRIF monomers was carried out by distillation (at 59°C/100 mmHg and 46°C/125 mmHg, respectively). 

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