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Ara es mostren els items 54-73 de 110

    • Metal-free catalyzed ring-opening polymerization and block copolymerization of ¿-pentadecalactone using amino-ended initiators 

      Tinajero, Ernesto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián; de Paz, Maria Viola; Galbis Fuster, Elsa (Elsevier, 2018-11-01)
      Article
      Accés obert
      Metal-free catalysis was successfully applied to polymerize ¿-pentadecalactone (PDL) by ring-opening polymerization (ROP) using several amino-ended initiators, namely hexylamine, allylamine and O,O'-bis(3-aminopropyl)diethylene ...

    • Modification of microbial polymalic acid with hydrophobic amino acids for drug-releasing nanoparticles 

      Lanz, Alberto; García Álvarez, Montserrat; Portilla Arias, Jose Antonio; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Holler, Eggehard; Ljubimova, Julia Y.; Muñoz Guerra, Sebastián (2012-08-14)
      Article
      Accés restringit per política de l'editorial
      Microbial poly( β , L -malic acid) was modifi ed with either L -leucine ethyl ester (L) or L -phenylalanine methyl ester (F) to produce amphiphylic copolymers. The degradation of these copolymers in aqueous buffer took ...

    • Modification of microbial polymers by thiol-ene click reaction: Nanoparticle formation and drug encapsulation 

      Lanz, Alberto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; García Álvarez, Montserrat; Muñoz Guerra, Sebastián (2016-09-01)
      Article
      Accés obert
      Comb-like amphiphilic polymers were obtained by grafting long paraffinic chains on microbial poly(¿,dl-glutamic acid) and poly(ß,l-malic acid) through two steps, i.e. allylation of the carboxylic side groups followed by ...

    • Modification of properties of poly(butylene succinate) by copolymerization with tartaric acid-based monomers 

      Zakharova, Elena; Lavilla, Cristina; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2014-12-01)
      Article
      Accés restringit per política de l'editorial
      The two cyclic acetals, 2,3-di-O-methylene-l-threitol and dimethyl 2,3-di-O-methylene-l-threarate, were used for the synthesis of two series of PBS copolyesters differing in which unit, butylene or succinate, was replaced, ...

    • Modulating the Tg of poly(alkylene succinate)s by inserting bio-based aromatic units via ring-opening copolymerization 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2017-12-12)
      Article
      Accés obert
      Two series of aliphatic-aromatic copolyesters derived from succinic and 2,5-furandicarboxylic acids, and di-O-2-(hydroxyethyl) resorcinol as diol substituent of either 1,4-butanediol or ethylene glycol, respectively, were ...

    • Nanoparticles made of poly(gama-glutamic acid) derivatives for drug delivery systems 

      Dorost, Porochista; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; García Álvarez, Montserrat (2022)
      Comunicació de congrés
      Accés obert
      One of the treatments for cancer is chemotherapy but most anticancer drugs have a low therapeutic index, which causes toxicity complications in the healthy tissues [1]. To minimize these complications and improve the effect ...

    • Nanoparticles of esterified polymalic acid for controlled anticancer drug release 

      Lanz Landazuri, Alberto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Portilla Arias, Jose Antonio; García Álvarez, Montserrat; Holler, Eggehard; Ljubimova, Julia; Muñoz Guerra, Sebastián (2014-09-01)
      Article
      Accés restringit per política de l'editorial
      Esterification of microbial poly(malic acid) is performed with either ethanol or 1-butanol to obtain polymalate conjugates capable to form nanoparticles (100–350 nm). Degradation under physiological conditions takes place ...

    • Nanostructured amphiphilic systems based on hyaluronic acid ionic complexes 

      Gamarra Montes, Ana; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Casas Becerra, María Teresa; Muñoz Guerra, Sebastián (2016)
      Text en actes de congrés
      Accés obert
      In this communication we wish to report on HyA ionic complexes prepared by coupling with a) choline-based surfactants (nACh·HyA complexes), and b) alkylphosphonium surfactants (nATMP·HyA complexes) with n being the number ...

    • Organocatalyzed closed-loop chemical recycling of thermo-compressed films of poly(ethylene furanoate) 

      Gabirondo, Elena; Melendez Rodriguez, Beatriz; Arnal, Carmen; Lagaron, Jose Maria; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Sardon, Haritz; Torres Giner, Sergio (2021-03-14)
      Article
      Accés obert
      Monomers obtained from renewable feedstocks have emerged as a sustainable alternative to petroleum derived polymers. One of the biomass derived polyesters that has recently been gaining attention as an alternative to ...

    • Partially renewable copolyesters prepared from acetalized d-glucitol by solid-state modification of poly(butylene terephthalate) 

      Gubbels, Erik; Lavilla, Cristina; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Noordover, Bart A. J.; Koning, Cor E.; Muñoz Guerra, Sebastián (2014-01-15)
      Article
      Accés restringit per política de l'editorial
      The backbone of poly(butylene terephthalate) (PBT) was modified with 2,4:3,5-di- O -methylene- D -glucitol (Glux) using solid-state modification (SSM). The obtained copolyest- ers proved to have a non-random overall ...

    • Partially renewable poly(butylene 2,5-furandicarboxylate-co-isophthalate) copolyesters obtained by ROP 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-01)
      Capítol de llibre
      Accés obert
      Cyclic butylene furandicarboxylate (c(BF)n) and butylene isophthalate (c(BI)n) oligomers obtained by high dilution condensation reaction were polymerized in bulk at 200 ¿C with Sn(Oct)2 catalyst via ring opening polymerization ...

    • Partially renewable poly(butylene 2,5-furandicarboxylate-co-isophthalate) copolyesters obtained by ROP 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (Multidisciplinary Digital Publishing Institute (MDPI), 2018-04-28)
      Article
      Accés obert
      Cyclic butylene furandicarboxylate (c(BF)n) and butylene isophthalate (c(BI)n) oligomers obtained by high dilution condensation reaction were polymerized in bulk at 200 °C with Sn(Oct)2 catalyst via ring opening polymerization ...

    • pH-responsive diblock copolymers made of omega-pentadecalactone and ionically charged alpha-amino acids 

      Tinajero, Ernesto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (Elsevier, 2019-11-01)
      Article
      Accés obert
      Two sets of ionically charged polypentadecalactone-polypeptide diblock copolymers (PPDLx-b-PAAy, with x= 15 or 20 and y ranging from 30 to 200), one containing alpha-L-glutamic acid (LGA) and the other containing ...

    • Poliuretano-ureas biobasados en dispersión acuosa para el sector de recubrimientos textiles 

      Lacruz Cruz, Amado; Salvador Ibañez, Mireia; Aliaga, Josep; Camps Ubach, Jan; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon (2021-12-01)
      Article
      Accés restringit per política de l'editorial
      This work is a summary of the research lines carried out in the company Color Center, S.A. for the development of sustainable waterborne polyurethane-ureas dispersions and their application in the textile coatings sector. ...

    • Poly(alkylene 2,5-furandicarboxylate)s (PEF and PBF) by ring opening polymerization 

      Morales Huerta, Juan Carlos; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (Elsevier, 2016-03-22)
      Article
      Accés obert
      The preparation of cyclic ethylene and butylene 2,5-furandicarboxylate oligoesters and their conversion to furan-based polyesters poly(ethylene furanoate) (PEF) and poly(butylene furanoate) (PBF) by ring-opening polymerization ...

    • Poly(alpha-dodecyl gamma-glutamate) (PAAG-12) and polylactic acid films charged with alpha-tocopherol and their antioxidant capacity in food models 

      Villasante Dueñas, Juliana; Codina, Eva; Hidalgo López, Gádor Indra; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián; Almajano Pablos, María Pilar (2019-08-06)
      Article
      Accés obert
      Poly (alpha-dodecyl-glutamate) (PAAG-12) was successfully synthesized from poly(gamma-glutamic acid) (PGGA) according to Nuclear Magnetic Resonance (NMR) analyses. PAAG-12 filmswere prepared and enriched with 5% alpha-tocopherol, ...

    • Poly(amino acid)-grafted polymacrolactones. Synthesis, self-assembling and ionic coupling properties 

      Tinajero, Ernesto; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Cavanagh, Breton; Heise, Andreas; Muñoz Guerra, Sebastián (2019-01-01)
      Article
      Accés obert
      Polyglobalide (PGl) with number average polymerization degree of ~20 was prepared by enzymatic ROP and then polyfunctionalized at 60% with aminothioethylene groups. The PGl20-(NH2)12 copolymer was used as macroinitiator ...

    • Poly(butylene 2,5-furan dicarboxylate-co-butylene succinate) via ring opening polymerization 

      Morales Huerta, Juan Carlos; Ciulik, Claudio; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Muñoz Guerra, Sebastián (2016)
      Text en actes de congrés
      Accés obert
      In this communication we wish to report on the synthesis of PBFxSy copolyesters by ring opening polymerization (ROP) using either organometallic catalysts or enzymes. The ROP of macrocyclic oligomers (MCOs) has been ...

    • Poly(butylene succinate) ionomers and their use as compatibilizers in nanocomposites 

      Bautista, Mayka; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Muñoz Guerra, Sebastián (2016-09-01)
      Article
      Accés obert
      A series of low-molecular-weight poly(butylene succinate-co-glutarate-co-2-trimethylammonium chloride glutarate) terpolyester ionomers containing 35% mol of total glutarate units but varying in the content of charged units ...

    • Poly(butylene succinate) ionomers with enhanced hydrodegradability 

      Bautista, Mayka; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Alla Bedahnane, Abdelilah; Muñoz Guerra, Sebastián (2015-07-09)
      Article
      Accés obert
      A series of poly(butylene succinate) (PBS) ionomers containing up to 14 mol%of sulfonated succinate units have been synthesized by polycondensation in the melt-phase. The copolyesters were obtained with weight average ...