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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Enzymatic synthesis and structural characterization of methacryloyl-D-fructose- and methacryloyl-D-glucose-based monomers and poly(methacryloyl-D-fructose)-based hydrogels

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Perin, Giovanni Bortoloni [1] ; Felisberti, Maria Isabel [1]
Total Authors: 2
[1] Univ Estadual Campinas, Inst Chem, POB 6154, BR-13084971 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY; v. 93, n. 6, p. 1694-1704, JUN 2018.
Web of Science Citations: 5

BACKGROUND: Carbohydrates are important renewable raw materials and their modification by enzymatic reactions with polymerizable groups is of great importance due the possibility of production of polymers with properties for biomedical applications. In this study, D-fructose- and D-glucose-basedmonomers were prepared by enzymatic reactions and structurally characterized. Moreover, hydrogels based on poly(methacryloyl-D-fructose) were also prepared and characterized. RESULTS: The conversions of 99% and 34% for D-fructose and D-glucose, respectively, were achieved using 2,2,2-trifluoroethyl methacrylate as the methacrylic donor and commercial lipase Novozyme (R) 435 (EC as enzymatic catalyst in t-butanol. The molar ratios of D-fructose and D-glucose mono-and dimethacrylate were 57/43 and 87/13, respectively. These monomers are an isomeric mixture related to the tautomeric equilibrium of the carbohydrates in solution. Methacryloyl-D-fructose was polymerized in the presence of a controlled amount of ethyleneglycol dimethacrylate as crosslinker achieving hydrogels with different crosslinking densities which are mechanically stable when subject to compression-decompression cycles and have a high water swelling capability. CONCLUSION: The combination of 2,2,2-trifluoroethylmethacrylate and Novozym (R) 435 in a heterogeneous media lead to the continuous carbohydrate solubilization and reaction with the formation of carbohydrates-basedmonomers. The control of the monomer functionality enables the synthesis of hydrogels with different crosslinking densities that tune their properties. (C) 2017 Society of Chemical Industry (AU)

FAPESP's process: 10/17804-7 - Polymeric composites
Grantee:Maria Isabel Felisberti
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/14232-3 - Hydrogels based on polymethacrylates of glucose and fructose
Grantee:Giovanni Bortoloni Perin
Support Opportunities: Scholarships in Brazil - Scientific Initiation