Exploració per tema "Polyesters"

Ara es mostren els items 1-20 de 79

    • 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
      Accés obert
      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 ...

    • Aliphatic polyester and Poly(ester amide) Clay nanocomposites by In-situ Polymerization 

      Morales Gámez, Laura Teresa; Rodríguez Galán, Rafael Alfonso; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (Wiley-VCH Verlag ¬ Co. KGaA, 2011)
      Capítol de llibre
      Accés obert

    • Aromatic Polyesters from Cyclic Diacetalized Glucose 

      Japu, Cristina (Universitat Politècnica de Catalunya, 2010-06)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      The 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. ...

    • 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)
      Comunicació de congrés
      Accés obert
      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 ...

    • Bio-based aromatic polyesters and copolyesters by ring opening polymerization 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2016)
      Comunicació de congrés
      Accés obert
      In this work, the synthesis of both c(BF)n and c(BT)n has been performed using the high dilution cyclization technique and these cycles have been then used for the preparation of the homopolyesters PBF and PBT, as well as ...

    • Bio-based aromatic polyesters from a novel bicyclic diol derived from D-mannitol 

      Lavilla Aguilar, Cristina; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; García Martín, Maria de Gracia; Galbis Pérez, Juan Antonio; Muñoz Guerra, Sebastián (American Chemical Society (ACS), 2012-10-23)
      Article
      Accés obert
      2,4:3,5-Di-O-methylene-D-mannitol, abbreviated as Manx, is a D-mannitol-derived compound with the secondary hydroxyl groups acetalized with formaldehyde. The bicyclic structure of Manx consists of two fused 1,3-dioxane ...

    • Bio-based PBS copolyesters derived from a bicyclic D-glucitol 

      Zakharova, Elena; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2015-05-12)
      Article
      Accés obert
      2,4:3,5-di-O-methylene-D-glucitol (Glux-diol) was used for the synthesis of poly(butylene succinate) (PBS) copolyesters by melt polycondensation. Glux-diol possess a rigid bicyclic asymmetric structure made of two fused ...

    • Bio-based poly(hexamethylene terephthalate) copolyesters containing cyclic acetalized tartrate units 

      Japu, Cristina; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Muñoz Guerra, Sebastián (Elsevier, 2013-03-08)
      Article
      Accés restringit per política de l'editorial
      A cyclic acetal of dimethyl l-tartrate (dimethyl 2,3-di-O-methylene l-threarate, Thx) was used as comonomer of dimethyl terephthalate (DMT) in the polycondensation with 1,6-hexanediol (HD) in the melt. Random copolyesters ...

    • Biodegradability and biocompatibility of copoly(butylene sebacate-co-terephthalate)s 

      Heidarzadeh, Nina; Mehdi Rafizadeh, Mehdi; Faramarz Afshar Taromi, Faramarz Afshar; Valle Mendoza, Luis Javier del; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2017-01-01)
      Article
      Accés obert
      In the present study poly (butylene sebacate-co-terephthalate)s having different compositions were synthesized with a high yield and a random distribution by thermal transesterification of poly (butylene sebacate) and poly ...

    • Biodegradable aromatic 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 (2012-08-15)
      Article
      Accés restringit per política de l'editorial
      Random poly(hexamethylene terephthalate-co-galactarate) s and poly(dodecamethylene terephthalate-co-galactarate) s copolyesters covering the whole range of compositions were obtained with weight-average molecular weights ...

    • 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
      Accés obert
      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 ...

    • 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
      Accés restringit per política de l'editorial
      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 ...

    • Carbohydrate-based PBT copolyesters from a cyclic diol derived from naturally occurring tartaric acid: a comparative study regarding melt polycondensation and solid-state modification 

      Lavilla Aguilar, Cristina; Gubbels, Erik; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Noordover, Bart A. J.; Koning, Cor E.; Muñoz Guerra, Sebastián (2014-04-01)
      Article
      Accés restringit per política de l'editorial
      2,3-O-Methylene-L-threitol (Thx) is a cyclic carbohydrate-based diol prepared by acetalization and subsequent reduction of the naturally occurring tartaric acid. The structure of Thx consists of a 1,3-dioxolane ring with ...

    • Carbohydrate-based polyamides and polyesters: an overview illustrated with two selected examples 

      Muñoz Guerra, Sebastián (2012-02)
      Article
      Accés obert
      An overview on the synthesis, structure and properties of polyamides and aromatic copolyesters produced by using monomers derived from carbohydrates is provided. Two examples are selected for illustration: (a) aliphatic ...

    • Carbohydrate-based polyesters 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 (2011-07-11)
      Article
      Accés obert
      The dimethyl ester of 2,3:4,5-di-O-methylene-galactaric acid (Galx) was made to react in the melt with 1,n-alkanediols HO(CH2)nOH containing even numbers of methylenes (n from 6 to 12) to produce linear polycyclic polyesters. ...

    • Cationic poly(butylene succinate) copolyesters 

      Bautista, Mayka; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Vives, Marc; Morató Farreras, Jordi; Muñoz Guerra, Sebastián (2016-02-01)
      Article
      Accés obert
      The synthesis, characterization and comparative evaluation of properties of two series of cationic PBS copolyesters bearing respectively ammonium and tributylphosphonium side groups, are reported. The copolyesters with ...

    • Cell responses to electrical pulse stimulation for anticancer drug release 

      Puiggalí Jou, Anna; Valle Mendoza, Luis Javier del; Alemán Llansó, Carlos (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-01)
      Article
      Accés obert
      Electrical stimulation is an attractive approach to tune on-demand drug release in the body as it relies on simple setups and requires typically 1 V or less. Although many studies have been focused on the development of ...

    • Cellular structure and mechanical properties of polydhyroxyalkanoate (PHA) based foams 

      Ventura Casellas, Heura; Rodríguez-Pérez, Miguel Ángel; Ardanuy Raso, Mònica (2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Chemical structure and microstructure of poly(alkylene terephthalate)s, their copolyesters, and their blends as studied by NMR 

      Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2014-11-17)
      Article
      Accés restringit per política de l'editorial
      The use of NMR spectroscopy in solution to investigate the chemical structure of engineering poly(alkylene terephthalate)s such as poly(ethylene terephthalate) (PET), poly(trimethylene terephthalate) (PTT), and poly(butylene ...

    • Compuestos de PLA/o-MMT: caracterización morfológica y mecánica 

      Velázquez Infante, Julio Cesar; Franco Urquiza, Edgar Adrian; Santana Pérez, Orlando Onofre; Martínez Benasat, Antonio; Maspoch Rulduà, M. Lluïsa; Gamez Pérez, José; Carrasco Alonso, Félix Ángel (2011)
      Text en actes de congrés
      Accés obert
      En este trabajo se investiga la influencia del procesado y del contenido de nanoarcilla en las propiedad mecánicas de láminas obtenidas por extrusión-calandra a partir de un grado comercial de PLA y una nanoarcilla ...