Browsing by Subject "Polímers"
Now showing items 1-20 of 303
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A green strategy for the synthesis of poly(ethylene succinate) and its copolyesters via enzymatic ring opening polymerization
(2017-10)
Article
Open AccessPoly(ethylene succinate) (PES) with weight-average molecular weight above 60,000 g mol-1 was efficiently obtained by enzymatic ring opening polymerization of cyclic oligo(ethylene succinate)s c(ES)n, which in turn were ... -
A multi-step template-assisted approach for the formation of conducting polymer nanotubes onto conducting polymer films
(2016-04-25)
Article
Open AccessAfter exhibiting the important limitations of the template-assisted approach when electropolymerization on simple stainless steel electrodes and electrospinning of insulating polymeric templates are combined, hollow ... -
A new method to obtain information about the pore size distribution in microporous polymeric membranes
(2008-03)
Article
Restricted access - publisher's policyTransport measurements of selected fluids through porous membranes provide information on precise statistical moments of the membrane pore-size distribution (PSD). It is assumed that membrane porosity, ~T,is distributed ... -
A study of etching conditions and resolution power of plastic detector CR-39
(Pergamon Press, 1984)
Article
Open AccessTwo Pershore Stacks (32 h cure cycle and 1% DOP and 96 h cure cycle and no additive) have been exposed to the Berkeley Bevalac Argon beam at 285 MeV/nuc and 425 MeV/nuc, respectively. Optimum previous termetching conditionsnext ... -
Acción de los polímeros de carboxilato en el lavado sin fosfatos de tejido de algodón aprestado.
(Instituto de Investigación Textil y Cooperación Industrial, 1998-07)
Article
Open AccessA partir de un tejido de algodón sin apresto y aprestado con la resina DMDHEU, se evaluó la eficiencia detersiva a 25°HF obtenida con la inclusión de los copolímeros de ácido acrílico/ácido maléico (sal de sodio) y zeolita ... -
Acetoacetate based thermosets prepared by dual-Michael addition reactions
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-01-01)
Article
Open AccessA novel set of dual-curable multiacetoacetate-multiacrylate-divinyl sulfone ternary materials with versatile and manipulable properties are presented. In contrast to common dual-curing systems, the first stage polymer ... -
Amphiphilic ionic complexes of hyaluronic acid with organophosphonium compounds and their antimicrobial activity
(2018-01-01)
Article
Open AccessAmphiphilic ionic complexes of hyaluronic acid and alkyltrimethylphosphonium soaps with alkyl chains containing even numbers of carbons from 12 to 22 have been produced. The complexes have a nearly stoichiometric composition, ... -
An amphiphilic, heterografted polythiophene copolymer containing biocompatible/biodegradable side chains for use as an (electro)active surface in biomedical applications
(2019-09-28)
Article
Open AccessGiven that the copolymers of complex topology and composition are at the forefront of multifunctional materials research, this work reports aboutan amphiphilic random, heterografted copolymer of ... -
An overview of the methods to characterise human bone tissue with particular reference to osteoporosis
(Universitat Politècnica de Catalunya, 2018-10-31)
Bachelor thesis
Open AccessThe goal of this work is to make an overview of the current methods that allow bone quality assessment, its advantages and drawbacks, as well as its application in the treatment of diseases such as osteoporosis. -
Anàlisi de la contribució a tallant dels reforços exteriors amb laminats de polímers reforçats amb fibres (FRP) en bigues de formigó armat
(Universitat Politècnica de Catalunya, 2012-07)
Minor thesis
Open Access[ANGLÈS] (...) Nowadays, the existing guides and recommendations propose calculating shear capacity by adding the contribution of the concrete and the passive reinforcement. In FRP reinforced elements, existing models ... -
Antennas based on low-cost thermoplastic polymer substrates for communication in the industrial, scientific and medical radio band
(2019-05-10)
Article
Open AccessThis work addresses the design guidelines, manufacturing process and experimental test of several antennas based on low cost and low loss thermoplastic polymer substrates. The proposed antennas are based on patch topologies ... -
Antibacterial films made of ionic complexes of poly(y-glutamic acid) and ethyl lauroyl arginate
(2017-12-24)
Article
Open Access© 2017 by the author. The biocide agent LAE (ethyl aN-lauroyl l-arginate chloride) was coupled with poly(y-glutamic acid) (PGGA) to form stable ionic complexes with LAE:PGGA ratios of 1 and 0.5. The nanostructure adopted ... -
Antimicrobial activity of poly(ester urea) electrospun fibers loaded with bacteriophages
(2018-06-01)
Article
Open AccessThe capacity to load bacteriophages into electrospun nanofibers of two representative biocompatible polymers has been evaluated, paying special attention to the possibility of preserving their antibacterial activity. ... -
Aplicació informàtica per a la construcció de matrius polimèriques amorfes d'alta densitat
(Universitat Politècnica de Catalunya, 2018-01)
Bachelor thesis
Open AccessL’objectiu d’aquest projecte ha sigut iniciar el desenvolupament d’un programa que sigui capaç de construir matrius polimèriques amorfes d’alta densitat. Les matrius polimèriques poden estar compostes de cadenes molt ... -
Aplicación de polímeros electroactivos a la protección de la corrosión metálica por aditivación de pinturas alquídicas
(Universitat Politècnica de Catalunya, 2010-06-17)
Master thesis (pre-Bologna period)
Open AccessL'objectiu d'aquest projecte és comparar i estudiar el comportament davant la corrosió marina de xapes metàl·liques d'acer pintades amb una pintura d'imprimació comercial de tipus alquídica. La formulació de la imprimació ... -
Aplicación de polímeros electroactivos a la protección de la corrosión metálica por aditivación de pinturas alquídicas
(Universitat Politècnica de Catalunya, 2010-06-17)
Master thesis (pre-Bologna period)
Open AccessL'objectiu d'aquest projecte és comparar i estudiar el comportament davant la corrosió marina de xapes metàl·liques d'acer pintades amb una pintura d'imprimació comercial de tipus alquídica. La formulació de la imprimació ... -
Application of the miniature small punch test for the mechanical characterization of polymer materials
(2016-12-01)
Article
Open AccessThe aim of this paper is to demonstrate the applicability of the Small Punch Test (SPT) in the mechanical characterization of polymers, following previous achievements in metallic materials. For this purpose, different ... -
Arc tracking control in insulation systems for aeronautic applications: challenges, opportunities, and research needs
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-16)
Article
Open AccessNext generation aircrafts will use more electrical power to reduce weight, fuel consumption, system complexity and greenhouse gas emissions. However, new failure modes and challenges arise related to the required voltage ... -
Aromatic ionene topology and counterion-tuned gelation of acidic aqueous solutions
(2017-04-28)
Article
Open AccessUnusual gelation of acidic solutions was achieved using polycations bearing quaternary ammonium moieties. These ionene polymers are based on a disubstituted phenylene dibenzamide core, which allows the construction of ... -
Aromatic Polyesters from Cyclic Diacetalized Glucose
(Universitat Politècnica de Catalunya, 2010-06)
Master thesis
Restricted access - author's decisionThe development of polymers based on monomers from renewable feedstock, and more specifically from carbohydrates, is a steadily growing field of interest because of the properties that can generate these unique structures. ...
