@article { ISI:000286856600053,
	title = {Hydrolysis of vegetable oils and fats to fatty acids over solid acid catalysts},
	journal = {Applied Catalysis A-General},
	volume = {391},
	number = {1-2, SI},
	year = {2011},
	month = {JAN},
	pages = {427-435},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Solid Fe-Zn double-metal cyanide (DMC) complexes exhibit high catalytic activity for hydrolysis of edible and non-edible vegetable oils and animal fat. In a batch reaction, complete conversion of vegetable oil triglycerides to fatty acids with selectivity greater than 73 wt\% was obtained at temperatures as low as 463 K, autogenous pressure and with 5 wt\% of catalyst. Catalytic activity of DMC was superior to Amberlyst (TM) 70, SAPO-11, H-beta, HY, MoO(x)/Al(2)O(3) and sulfated zirconia. Rates of hydrolysis were greatly enhanced when solvents (tetrahydrofuran or N,N-dimethylformamide), phase transfer agents (tetrapropyl ammonium bromide) and products (a mixture of mono-/diglycerides and fatty acids) or fatty acid was added to the feed. Surface hydrophobicity which enables high wettability and activation of glycerides on active, acidic sites of reusable DMC is attributed to be the major cause for its superior catalytic activity. (C) 2010 Elsevier B.V. All rights reserved.</p>},
	keywords = {Double-metal cyanide complex, Fat splitting, Fatty acids, Hydrolysis of vegetable oils and fats, solid acid catalyst},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2010.03.047},
	author = {Satyarthi, J. K. and Srinivas, D. and Ratnasamy, P.}
}
@article { ISI:000334895800021,
	title = {Solid, double-metal cyanide catalysts for synthesis of hyperbranched polyesters and aliphatic polycarbonates},
	journal = {Journal of Chemical Sciences},
	volume = {126},
	number = {2, SI},
	year = {2014},
	note = {21st National Symposium on Catalysis (CATSYMP), CSIR Indian Inst Chem Technol, Hyderabad, INDIA, FEB 11-13, 2013},
	month = {MAR},
	pages = {499-509},
	publisher = {Catalysis Soc India},
	address = {C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA},
	abstract = {<p>Fe-Zn and Co-Zn double-metal cyanide (DMC) complexes exhibit highly efficient and selective catalytic activity for synthesis of hyperbranched polyesters (glycerol succinic acid (G-SA) and glycerol adipic acid (G-AA)) and aliphatic polycarbonates (via., alternative co-polymerization of cyclohexene oxide and CO2), respectively. The influence of method of preparation of DMC, in particular the mode of addition of reagents, on its physicochemical and catalytic properties was investigated. Co-Zn DMC was found highly selective for polycarbonate (than polyethers) formation. Catalysts prepared using tert-butanol and PEG-4000 as complexing and co-complexing agents, respectively, were found superior to those prepared without these agents. Apart from its role as a coordinating ligand, tert-butanol activated the Lewis acidic Zn2+ sites for reactions in polyester and polycarbonate formation. Hydrophobicity, micro-mesoporosity, acid strength and the amount of coordinated complexing agent are some of the crucial factors influenced the catalytic activity of DMC complexes.</p>},
	keywords = {aliphatic polycarbonate, CO2 utilization, Double-metal cyanide complex, heterogeneous catalysis, hyperbranched polyester},
	issn = {0974-3626},
	author = {Sebastian, Joby and Darbha, Srinivas}
}
