Polycarbonates derived from CO2 and epoxides such as poly(propylene carbonate) and poly(cyclohexene carbonate) are well-studied in literature and have been commercialized in recent years.1 A cheap, non-toxic and renewable resource, utilization of CO2 as a monomer provides a sustainable chemistry for the production of polymeric materials.Our group newly reported the synthesis of poly(indene carbonate) having a glass-transition temperature (Tg) of 138 �C, the highest observed so far for polycarbonates obtained via CO2 and epoxide coupling.2 We are currently investigating epoxide monomers with bulkier backbones that might further increase Tg in addition to showing better selectivity towards polymer formation with the right catalysts.This presentation will cover our current efforts in copolymerizing CO2 with naphthalene derived epoxide (see figure). Polymer selectivity versus cyclic carbonate formation will be discussed with regards to employing binary (salen)M(III)X/cocatalyst and newer asymmetric bifunctional M(III) catalysts, where M = Cr, Co. a) Darensbourg, D. J.; Wilson, S. J. Green Chem., 2012  , 14, 2665-2671. b) www.empowermaterials.com; www.novomer.comDarensbourg, D. J.; Wilson, S. J. Macromolecules, 2013  , 46, 5929-5934.

Copolymerization of CO<sub>2</sub> and dihydronaphthalene oxide with Cr(III) and Co(III) catalysts

247th National Meeting (2014)

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Copolymerization of CO2 and dihydronaphthalene oxide with Cr(III) and Co(III) catalysts

Copolymerization of CO₂ and dihydronaphthalene oxide with Cr(III) and Co(III) catalysts