Medium chain glycerides of coconut oil for microwave-enhanced conversion of polycarbonate into polyols

Rigid Polyurethane Foam Fabrication Using Medium Chain Glycerides of Coconut Oil and Plastics from End-of-Life Vehicles

“…Contrary to that, the linear PC was predominantly converted by the reaction with TCCO into diols (BPA and BPA endcapped with one monoglyceride unit through carbonate bond), triols (BPA end-capped with one glycerol unit through carbonate group or BPA end-capped with one monoglyceride and one glycerol units through carbonate groups) considering monoglycerides and glycerol as the main components of TCCO. 26 FTIR spectrum of RPCP (Figure S2) revealed the presence of aromatic and aliphatic structures, phenolic and alcoholic OH groups as well as glyceride and carbonate linkages. The detailed analysis of RPCP components was previously performed 26 and therefore is not mentioned in this paper.…”

“…26 FTIR spectrum of RPCP (Figure S2) revealed the presence of aromatic and aliphatic structures, phenolic and alcoholic OH groups as well as glyceride and carbonate linkages. The detailed analysis of RPCP components was previously performed 26 and therefore is not mentioned in this paper. The determined average number functionality of RPCP ( f n, OH = 1.8, Table 2) was lowered due to the presence of OHmonofunctional (e.g., BPA end-capped with one diglyceride unit through carbonate group) and OH-free (e.g., BPA endcapped with two diglyceride units through carbonate groups) compounds in RPCP.…”

“…In one of a last study, Benešet al used a waste fraction from the soap industry composed uniquely of medium chain triglycerides of coconut oil (CCO) for synthesis of a biobased reagent for PC degradation. 26 The reagent was prepared by transesterification of CCO with glycerol from biodiesel production. The obtained transesterified CCO (TCCO) is thus 100% renewable-based, prepared only from byproducts and was already proven to be an efficient reagent for solvolysis of PC technological scraps.…”

“…The obtained transesterified CCO (TCCO) is thus 100% renewable-based, prepared only from byproducts and was already proven to be an efficient reagent for solvolysis of PC technological scraps. 26 In this paper, TCCO was used for microwave-accelerated decompositions of two postconsumer wastes (PUR and PC) coming from ELVs. The PUR and PC wastes were converted by TCCO into two types of recycled polyols, both composed uniquely of renewable and recycled components.…”

Recyclable Nanomagnetic Fe3O4@APTES catalyst role on the Hydrolysis of Polycarbonate Wastes

“…Do et al [2], has studied methanolysis of the PC into bisphenol-A (BPA) and dimethyle carbonate (DMC) using 1,5,7triazabicyclo [4.4.0]-dec-5-ene (TBD) as an organocatalytic and DMC itself under mild condition. Beneš and coworkers [3], have reported the microwave-assisted degradation of the PC wastes to suitable polyols for preparing of polyurethanes (PUR) foams in optimal conditions. Depolymerization of PCs sample by the Taguchi research group to BPA was investigated using two crystallite sizes of Cerium (IV) oxide (CeO2) crystal (75 nm, and 7.40 nm) as the catalyst [1].…”