Browsing by Subject "Polymerization"
Now showing items 1-20 of 43
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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
Restricted access - publisher's policyPoly(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
(2017-08-01)
Article
Restricted access - publisher's policyGloss 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 ... -
Aplicación de la espectroscopía de infrarrojo para el estudio de procesos de cristalización y polimerización. Aplicación de nuevos materiales derivados de ácido glicólico
(Universitat Politècnica de Catalunya, 2009-11)
Master thesis (pre-Bologna period)
Open AccessEn 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
(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 ... -
Bio-based aliphatic polyesters from aliphatic diacids and bicyclic alditols: A comparative study
(2016)
Conference lecture
Open AccessIn 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
(2018-02-01)
Article
Open AccessCyclic 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
(2014-06-23)
Article
Restricted access - publisher's policyCatheter 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 ... -
Cálculo y diseño de una columna de destilación fraccionada en continuo para un sistema multicomponente
(Universitat Politècnica de Catalunya, 2016-09-05)
Bachelor thesis
Restricted access - confidentiality agreement -
Carbohydrate-based copolyesters made from bicyclic acetalized galactaric acid
(2012-04-15)
Article
Restricted access - publisher's policyMixtures 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 ... -
Controlling the morphology of poly(N -cyanoethylpyrrole)
(2012-04-26)
Article
Restricted access - publisher's policyThe 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
(2015-03-09)
Article
Open AccessBiotechnologically 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 ... -
Disseny d'un minireactor de policondensació
(Universitat Politècnica de Catalunya, 2014-09)
Master thesis (pre-Bologna period)
Open AccessLa 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 ... -
Epoxidació de productes naturals
(Universitat Politècnica de Catalunya, 2015-05)
Bachelor thesis
Open AccessL'esgotament del petroli ha generat un gran interès científic i econòmic en l'industria petroquímica per disminuir la dependència dels productes obtinguts a partir d'aquesta matèria primera. Els recursos naturals renovables, ... -
Estudio experimental para la obtención y caracterización de compuestos formados por polímero conductor y óxido metálico para aplicaciones eléctricas
(Universitat Politècnica de Catalunya, 2017-01-10)
Bachelor thesis
Restricted access - author's decisionEste proyecto estudia las propiedades eléctricas de las películas de materiales compuestos a partir de la electropolimerización de soluciones formadas a partir del monómero EDOT (3,4-etilendioxitiofeno) con adición de ... -
Ethylene polymerization and polyethylene functionalization
(Universitat Politècnica de Catalunya / Centre National de la Recherche Scientifique, 2010)
Master thesis (pre-Bologna period)
Open AccessPolyolefins have become ubiquitous and are large volume commodity materials. Of current interest is the preparation of speciality polymers incorporating polyethylene (PE), which often requires polymer chain-end manipulation. ... -
Explorant noves vies per a la polimerització d'àcids grassos: Tiolactones
(Universitat Politècnica de Catalunya, 2012-02)
Master thesis
Open AccessEn la societat actual hi ha un interès creixent en buscar alternatives al petroli, centrantse en les fonts renovables com a productes de partida per a la síntesi de polímers. Però en la consciència actual de química verda ... -
Green and selective polycondensation methods toward linear sorbitol-based polyesters: enzymatic versus organic and metal-based catalysis
(2016-08-23)
Article
Open AccessRenewable polyesters derived from a sugar alcohol (i.e., sorbitol) were synthesized by solvent-free polycondensation. The aim was to prepare linear polyesters with pendant hydroxyl groups along the polymer backbone. The ... -
Hydrogels for flexible and compressible free standing cellulose supercapacitors
(Elsevier, 2019-09-01)
Article
Restricted access - publisher's policyCellulose-based supercapacitors display important advantages in comparison with devices fabricated with other materials, regarding environmental friendliness, flexibility, cost and versatility. Recent progress in the field ... -
Isocyanate toughened pCBT: reactive blending and tensile properties
(2013-02-01)
Article
Open AccessCyclic butylene terephthalate oligomers (CBT) were reacted in a ring-opening polymerization with three types of isocyanates: a bifunctional aromatic type, a bifunctional aliphatic type and a polymeric aromatic isocyanate. ... -
Low-temperature plasma treatments in the design of polypropylene surgical meshes for hernia repair
(2016)
Conference report
Restricted access - publisher's policyOne of the new trends in textile biomaterials research is to deliver active compounds locally in the surgical site from the medical device. One way to manage post-operatory infections associated with mesh implants in ...
