Methylphenol Copolymerization

Table 7. Block copolymerization of methacrylonitrile (MAN) with the living prepolymer of methyl methacrylate (MMA) (2) in the presence of methylaluminum bis(2,6-di-ferf-butyl-4-methylphenolate) (3e) ... 

Although several peroxidase enzymes obtained from plant, animal, and microbial sources have been investigated for their ability to catalyze the removal of aromatic compounds from wastewaters, the majority of studies have focused on using HRP. In particular, it has been shown HRP can transform phenol, chlorophenols, methoxyphenols, methylphenols, amino-phenols, resorcinols, and various binuclear phenols [7], HRP was also used for the treatment of contaminants including anilines, hydroxyquinoline, and arylamine carcinogens such as benzidines and naphthylamines [7,8]. In addition, it has been shown that HRP has the ability to induce the formation of mixed polymers resulting in the removal of some compounds that are either poorly acted upon or not directly acted upon by peroxidase [7], This phenomenon, termed coprecipitation or copolymerization, has important practical implications for wastewaters that usually contain many different pollutants. This principle was demonstrated when it was observed that polychlorinated biphenyls (PCBs) could be removed from solution through coprecipitation with phenols [20]. However, this particular application of HRP does not appear to have been pursued in any subsequent research. 

The oxidative polymerization of 2-allyl-6-methylphenol with 2,6-di-methylphenol yields thermosets capable of thermal curing. The copolymerization yields high-molecular-weight copolymers with a number average Mn around 50,000 Dalton The polymers have broad molecular weight... 

Ling, J., Zhu, W., Shen, Z., 2004. ControUing ring-opening copolymerization of e-caprolactone with trimethylene carbonate hy scandium tris(2,6-di- tert -butyl-4-methylphenolate). Macromolecules 37 (3), 758—763. 

Ling, J., Shen, Z., 2002. Lanthanum tris(2,6-di-tert-butyl-4-methylphenolate) as a novel, versatile initiator for homo- and copolymerization of cyclic carbonates and lactones. Macromolecular Chemistry and Physics 203, 735—738. 

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