Browsing by Author "201-0010750"
Now showing items 1-20 of 70
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(Elsevier, 2011)Quinoa protein/chitosan films were obtained by solution casting of blends of quinoa protein extract (PE) and chitosan (CH). Films from a PE/CH blend were characterized by FTIR, X-ray diffraction, thermal analysis, and ...
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(SPRINGER VERLAG, 1993-11)Methyl methacrylate and methyl acrylate were grafted onto chitosan by using potassium persulfate alone as redox initiator and in combination with MnCl2 and CuCl2, as inorganic, and both ammonium tartrate and oxalate as ...
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(ELSEVIER SCIENCE BV, 2004-01)The aim of this work was to evaluate the possibility of using mixtures and/or polyelectrolyte complexes from both chitosan-alginate and chitosan-carrageenan as prolonged drug release systems. Different dissolution profiles ...
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(SOC PLASTICS ENG INC, 2003-04)New types of compatibilizers based on functionalized polypropylene (PP) were synthesized by radical melt grafting either with monomethyl itaconate or dimethyl itaconate. The effect of these new modified PP compounds were ...
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(Asociación de Químicos e Ingenieros del Instituto Químico de Sarría, 2003)The statistical evaluation of seven ion selective chemical sensors (ISE) for nitrate ion determination, based on polymeric membranes on a conductive support, has been carried out in this work. This was donw in order to ...
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(ASOC QUIMICOS, INST QUIMICO SARRIA, 2005-11)Lead(II) ion selective electrode, ISE, based on plasticized PVC membranes with 1-furoyl 3,3 diethyl thiourea as ionophore and tributylphosphate as plasticizer have been developed. The membrane was applied on a conducting ...
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(SOCIEDAD CHILENA DE QUIMICA, 2004-03)A potentiometric all-solid-state type ion-selective electrode (ISE) for NO3- was constructed and characterized. It is based on a mixture of tetra-decyl-ammonium nitrate (TDAN) as ionophore, di-butyl phthalate (DBP) as ...
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Deposition of carbon nanotubes onto aramid fibers using as-received and chemically modified fibers (Elsevier, 2016)Multiwall carbon nanotubes (MWCNTs) oxidized by an acid treatment were deposited on the surface of as-received commercial aramid fibers containing a surface coating ("sizing"), and fibers modified by either a chlorosulfonic ...
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(Universidad de Chile, 2015)Los materiales compuestos o compositos consisten en la mezcla de dos o más materiales. Se designa matriz al material que se encuentra en mayor proporción y relleno al material que se encuentra en menor proporción y ...
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(Ministerio de Educación Superior, 2003)Nitrate concentration in drinking water was directly determined by employing an ion selective liquid membrane electrode (ISE). This was constructed with poly(vynil chloride) as matrix on a solid conducting support. ...
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(Universidad de Chile, 2014)Esta Tesis Doctoral se planteó como objetivo general desarrollar un estudio de extracción y concentración de iones metálicos presentes en soluciones acuosas sintéticas que simulan aguas industriales y mineras, cuya etapa ...
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(Universidad de Chile, 2015)Hace más de 100 años los dispositivos de administración de fármacos (o Drug Delivery Systems, DDS) han comenzado a ser desplazados por un nuevo tipo de sistemas llamados de liberación controlada o Controlled Release Systems ...
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(MDPI, 2018)In our crystallization experiments, the influence of alginate from Chilean Lessonia nigrescens and functionalized multi-walled carbon nanotubes (MWCNTs) was tested through electrocrystallization (EC) and gas diffusion (GD) ...
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(WILEY-V C H VERLAG GMBH, 2001-07-06)
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(JOHN WILEY & SONS INC, 2003-08-22)To improve the compatibility and properties of blends based on high-density polyethylene (HDPE) and the ethylene-propylene copolymer (EPR), the functionalization of both through grafting with an itaconic acid derivative, ...
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(Ministerio de Educación Superior, 2003)Seven types of chemical sensors based on polymeric liquid membranes for determination of nitrate ion have been prepared by using 3-nitro-o-xylene (NOX), tri-butyphosphate (TBP), bis-(2-ethylhexyl)sebacate (DOS), ...
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(Elsevier, 2016)Graphene materials often are obtained through thermal reduction of graphite oxide. This is due to the fact that other synthesis methods are more difficult and generally render lower yield. The structure and morphology of ...
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(ELSEVIER SCIENCE BV, 2007-09)Chicken eggshell (ES) is an industrial byproduct containing 95% calcium carbonate, and its disposal constitutes a serious environmental hazard. Different proportions of chicken eggshell as bio-filler for polypropylene (PP) ...
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(Elsevier Ltd, 2019)Dielectric elastomers have been regarded as truly artificial muscles for their electro-mechanical (EM) actuation performance. However, they require large driving voltages to present adequate actuation strains. The main ...
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(Universidad de Chile, 2016)En la búsqueda de semiconductores poliméricos de fácil procesamiento para su aplicación en celdas solares orgánicas (CSO), esta tesis abordó la electropolimerización de derivados de tienilvinileno en una serie de líquidos ...
