Centro Universitario FEI: Envíos recientes
Mostrando ítems 1241-1260 de 2258
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Attainment of cellulose acetate from coir fiber submitted to pretreatment with IL n-butylammonium acetate
(2019)© 2019, Iran Polymer and Petrochemical Institute.Cellulose acetate was obtained from the coir fiber submitted to the treatment with the IL. The coir fiber was initially subjected to treatment with the n-butylammonium acetate ... -
Alkyd resin synthesis by enzymatic alcoholysis
(2019)© 2019, Iran Polymer and Petrochemical Institute.The synthesis of an alkyd resin through an enzymatic alcoholysis provided by Novozym 435 was analyzed in this study. The alcoholyses were performed in different enzyme ... -
Attainment and characterization of carboxymethyl chitosan hydrogels by enzymatic cross-linking
(2019)© 2019, Akadémiai Kiadó, Budapest, Hungary.In this study, carboxymethyl chitosan hydrogels (CMCH) cross-linked with catechin in the presence of laccase (CMCH-C-L) were obtained. The synthesis and characterization of CMCH ... -
Enzymatically obtaining hydrogels of PVA crosslinked with ferulic acid in the presence of laccase for biomedical applications
(2019)© 2018 Elsevier Ltd Hydrogels are three-dimensional natural or synthetic polymeric materials with numerous medical and biological applications, such as the ophthalmic area. In this context, a hydrogel using polyvinyl alcohol ... -
DSC characterization of enzymatic digestion of corneas treated with plant extracts rich in polyphenols
(2019)© 2019, Akadémiai Kiadó, Budapest, Hungary.Keratoconus is a progressive disease that affects patients’ quality of life by producing corneal irregular astigmatism and low vision as the cornea becomes thinner and presents a ... -
Characterization of PVA/glutaraldehyde hydrogels obtained using Central Composite Rotatable Design (CCRD)
(2018)© 2017 Wiley Periodicals, Inc. Hydrogels are made from natural or synthetic polymers and, currently, they have many biomedical applications. In this work, the conditions for obtaining a hydrogel with similar physicochemical ... -
Thermodynamic and spectroscopic study of binary mixtures of n-butylammonium oleate ionic liquid + alcohol at T = 288.15–308.15 K
(2018)© 2017, Akadémiai Kiadó, Budapest, Hungary.In this study, experimental data of density and speed of sound have been measured for binary liquid mixtures containing {n-butylammonium oleate (N4Ol) ionic liquid + 1-propanol, ... -
Pretreatment of Guinea grass (Panicum maximum) with the ionic liquid 1-ethyl-3-methyl imidazolium acetate for efficient hydrolysis and bioethanol production
(2018)© 2018, Springer Science+Business Media B.V., part of Springer Nature.In the present study, we pretreated the plant Guinea grass (Panicum maximum) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [EMIM][OAc] ... -
Optimizing treatment condition of coir fiber with ionic liquid and subsequent enzymatic hydrolysis for future bioethanol production
(2018)© 2017, Springer Science+Business Media B.V., part of Springer Nature.In the present study, we pretreated coir fiber with an ionic liquid (IL), n-butylammonium acetate, to expose its cellulose fibers. The best IL pretreatment ... -
Polypropylene/chemically treated coir composites: optimizing coir delignification conditions using central composite design
(2018)© 2017, Springer Science+Business Media B.V., part of Springer Nature.The effect of alkaline treatment of coir on polypropylene/coir composite properties was investigated, using a two-factor central composite design where ... -
DSC characterization of rabbit corneas treated with Stryphnodendron adstringens (Mart.) Coville extracts
(2018)© 2017, Akadémiai Kiadó, Budapest, Hungary.Keratoconus is an eye ectasia that affects the cornea causing distortion of vision. Corneal crosslinking promoted by riboflavin photo-stimulated at 365 nm is a treatment used ...