Now showing items 1-20 of 57

    • 2,7-Linked N-methylcarbazole copolymers by combining the macromonomer approach and the oxidative electrochemical polymerization 

      Escalona, Cindy; Estrany Coda, Francesc; Ahumada, Juan Carlos; Borràs Cristòfol, Núria; Soto Galdámes, Juan Pablo; Alemán Llansó, Carlos (2019-05-03)
      Article
      Open Access
      The preparation of copolymers bearing N-methylcarbazole and 2,7-linked 3,4-ethylenedioxythiophene units has been carried out using the N-methyl-2,7-di(2-(3,4-ethylenedioxythienyl))carbazole monomer, which has been chemically ...
    • A green strategy for the synthesis of poly(ethylene succinate) and its copolyesters via enzymatic ring opening polymerization 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2017-10)
      Article
      Open Access
      Poly(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 novel contribution to the modeling of the matting efficiency of aqueous polyurethane dispersions 

      Uribe, Julio; Graells Sobré, Moisès; Salgado, Juan (2017-08-01)
      Article
      Restricted access - publisher's policy
      Gloss is a critical issue in many applications in the coating industry. Gloss depends on optical and rheological properties of complex mixtures, and estimating gloss from basic properties is still a challenge. In order to ...
    • Antibacterial polyurethane foams with incorporated lignin-capped silver nanoparticles for chronic wound treatment 

      Morena Gatius, Ángela Gala; Ivanova, Kristina Dimitrova; Pérez Rafael, Silvia; Sánchez Soto, Miguel; Tzanov, Tzanko (2020-02-26)
      Article
      Open Access
      Lignin-capped silver nanoparticles were incorporated in situ into polyurethane foams during their polymerization to obtain multifunctional materials suitable for chronic wound dressing. Lignin with increased phenolic ...
    • Aplicación de la espectroscopía de infrarrojo para el estudio de procesos de cristalización y polimerización. Aplicación de nuevos materiales derivados de ácido glicólico 

      Sánchez Sánchez, Mireya (Universitat Politècnica de Catalunya, 2009-11)
      Master thesis (pre-Bologna period)
      Open Access
      En el presente Proyecto Final de Carrera se realiza la síntesis de las sales de sodio, potasio y cesio del ácido N-cloroacetil-6-aminohexanoico y se estudia su reactividad mediante espectroscopia de infrarrojo de reflexión ...
    • Aromatic ionene topology and counterion-tuned gelation of acidic aqueous solutions 

      Bachl, Jürgen; Bertran Cànovas, Òscar; Mayr, Judith; Alemán Llansó, Carlos; Díaz Díaz, David (2017-04-28)
      Article
      Open Access
      Unusual 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 ...
    • Bio-based aliphatic polyesters from aliphatic diacids and bicyclic alditols: A comparative study 

      Zakharova, Elena; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2016)
      Conference lecture
      Open Access
      In this work we have prepared and compared the thermal and mechanical properties of aliphatic polyesters made from aliphatic diacids with different polymethylene chain lengths (2, 4, 6, 8) and three bicyclic sugar derived ...
    • Blocky poly(epsilon-caprolactone-co-butylene 2,5-furandicarboxylate) copolyesters via enzymatic ring opening polymerization 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2018-02-01)
      Article
      Open Access
      Cyclic oligo(butylene 2,5-furandicarboxylate) and e-caprolactone were copolymerized in bulk at 130-150 ºC by enzymatic ring opening polymerization using CALB as catalyst. Copolyesters within a wide range of compositions ...
    • Building an antifouling zwitterionic coating on urinary catheters using an enzymatically triggered bottom-up approach 

      Díaz Blanco, Carlos; Ortner, Andreas; Dimitrov, Radostin; Navarro Sentanyes, Antonio; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2014-06-23)
      Article
      Restricted access - publisher's policy
      Catheter associated urinary tract infections are common during hospitalization due to the formation of bacterial biofilms on the indwelling device. In this study, we report an innovative biotechnology-based approach for ...
    • Carbohydrate-based copolyesters made from bicyclic acetalized galactaric acid 

      Lavilla Aguilar, Cristina; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Benito, Elena; García Martín, Maria de Gracia; Galbis Pérez, Juan Antonio; Muñoz Guerra, Sebastián (2012-04-15)
      Article
      Restricted access - publisher's policy
      Mixtures of the dimethyl esters of adipic acid and 2,3:4,5-di-O-methylene-galactaric acid (Galx) were made to react in the melt with either 1,6-hexanediol or 1,12-dodecanediol to produce linear polycyclic copolyesters with ...
    • Cálculo y diseño de una columna de destilación fraccionada en continuo para un sistema multicomponente 

      Picallo Cruz, Marta (Universitat Politècnica de Catalunya, 2016-09-05)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Chemical modification of reducing end-groups in cellulose nanocrystals 

      Heise, Katja; Delepierre, Gwendoline; King, Alistair W.T.; Kostiainen, Mauri A.; Zoppe, Justin Orazio; Weder, Christoph; Kontturi, Eero (2021-01-04)
      Article
      Open Access
      Native plant cellulose has an intrinsic supramolecular structure. Consequently, it can be isolated as nanocellulose species, which can be utilized as building blocks for renewable nanomaterials. The structure of cellulose ...
    • Click-based dual-curing thermosets and their applications 

      Ramis Juan, Xavier; Fernández Francos, Xavier; Flor López, Sílvia de la; Ferrando Piera, Francesc; Serra Albet, Maria Àngels (Elsevier, 2018)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Dual curing is the methodology for obtaining thermosets by combining two different and compatible polymerization reactions, taking place sequentially or simultaneously. Sequential dual-curing processing enables the preparation ...
    • Controlling the morphology of poly(N -cyanoethylpyrrole) 

      Fabregat Jové, Georgina; Alemán Llansó, Carlos; Casas Becerra, María Teresa; Armelín Diggroc, Elaine Aparecida (2012-04-26)
      Article
      Restricted access - publisher's policy
      The morphology of poly(N-cyanoethylpyrrole) has been controlled through the polymerization process. This polymer has been prepared by anodic polymerization, chemical oxidative polymerization in emulsion medium, and ...
    • Copolyesters made from 1,4-butanediol, sebacic acid, and D-glucose by melt and enzymatic polycondensation 

      Japu, Cristina; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Jiang, Yi; Loos, Katja; Muñoz Guerra, Sebastián (2015-03-09)
      Article
      Open Access
      Biotechnologically accessible 1,4-butanediol and vegetal oil-based diethyl sebacate were copolymerized with bicyclic acetalized d-glucose derivatives (Glux) by polycondensation both in the melt at high temperature and in ...
    • Copolymacrolactones grafted with L-glutamic acid: Synthesis, structure, and nanocarrier properties 

      Tinajero, Ernesto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (Multidisciplinary Digital Publishing Institute (MDPI), 2020-04-24)
      Article
      Open Access
      The enzymatic ring-opening copolymerization (eROP) of globalide (Gl) and pentadecalactone (PDL) was performed in solution from mixtures of the two macrolactones at ratios covering the whole range of comonomeric compositions. ...
    • Disseny d'un minireactor de policondensació 

      Aldea Roselló, Sergi (Universitat Politècnica de Catalunya, 2014-09)
      Master thesis (pre-Bologna period)
      Open Access
      La problemàtica en les reaccions de policondensació, és que l'equilibri entre els reactius i els productes és establert ràpidament, i per tant, la producció del producte desitjat , un polièster, s'atura. Es planteja la ...
    • Dual curing of an epoxy resin with dicarboxylic acids 

      Morancho Llena, José María; Ramis Juan, Xavier; Fernández Francos, Xavier; Konuray, Ali Osman; Salla Tarragó, José María; Serra Albet, Maria Àngels (Springer, 2020-03-18)
      Article
      Restricted access - publisher's policy
      In this work, we have studied the preparation and characterization of a new family of thermosets based on off-stoichiometric diacid-epoxy formulations in the presence of 1-methylimidazole as initiator. Tri-glycidyl para-amino ...
    • Dual-curable stereolithography resins for superior thermomechanical properties 

      Konuray, Ali Osman; Di Donato, Fabio; Sangermano, Marco; Bonada Bo, Jordi; Fernández Francos, Xavier; Serra Albet, Maria Àngels; Ramis Juan, Xavier (2020-09-01)
      Article
      Open Access
      Stereolithography (SL) stands out as a relatively fast additive manufacturing method to produce thermoset components with high resolutions. The majority of SL resins consist of acrylate monomers which result in materials ...
    • Effect of surface charge on surface-initiated atom transfer radical polymerization from cellulose nanocrystals in aqueous media 

      Zoppe, Justin Orazio; Xu, Xingyu; Känel, Cindy; Orsolini, Paola; Siqueira, Gilberto; Tingaut, Philippe; Zimmermann, Tanja; Klok, Harm-Anton (2016-04-11)
      Article
      Open Access
      Cellulose nanocrystals (CNCs) with different charge densities were utilized to examine the role of electrostatic interactions on surface-initiated atom transfer radical polymerization (SI-ATRP) in aqueous media. To this ...