Biocatalytic preparation of dichloropropyl acrylates. Application to the synthesis of poly(dichloropropyl acrylates)
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2013Author
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Yara Varón, Edinson;
Eras i Joli, Jordi;
Torres i Grifo, Mercè;
Balcells Fluvià, Mercè;
Villorbina Noguera, Gemma;
Canela i Garayoa, Ramon;
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(2013)
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Biocatalytic preparation of dichloropropyl acrylates. Application to the synthesis of poly(dichloropropyl acrylates).
Journal of Molecular Catalysis B: Enzymatic, 2013, vol. 92, p. 7–13.
https://doi.org/10.1016/j.molcatb.2013.03.005.
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The synthesis of dichloropropyl acrylates from dichloropropyl dodecanoates through a transesterification process using diverse commercial lipases and whole cells (fungal resting cells) is presented. The synthesis was carried out in a solvent-free media using a conventional batch system and a packed bed reactor (PBR). The effect of water activity on the process depended on the lipase used. The commercial enzyme CALB (Candida antarctica lipase B immobilized onto a macroporous acrylic resin) showed the best performance as a biocatalyst, achieving a yield of 50% and productivity of 7.2 μmol min−1 g−1 in the batch reactor and 33% and 35.8 μmol min−1 g−1 in the PBR. Finally, polymeric material was prepared by suspension polymerization of the dichloropropyl acrylates synthesized using PBR. Particles with diameters between 170 and 380 μm were obtained with a yield of 85% after 18 h reaction.