Ara es mostren els items 47-66 de 99

    • 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 ...
    • Nanocomposites of microbial polyglutamic acid and nanoclays compatibilized by organophosphonium surfactants 

      Gamarra Montes, Ana; Muñoz Guerra, Sebastián; Urpí Garriga, Lourdes; Galbis Fuster, Elsa; Galbis Pérez, Juan Antonio (2018-01-01)
      Article
      Accés obert
      Ionic coupling of bacterial poly(¿-glutamic acid) (PGGA) with alkyltrimethylphosphonium surfactants is reported to render comb-like PGGA complexes with a biphasic-layered structure displaying periodicity at the nanoscopic ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Poly(butylene succinate-co-e-caprolactone) copolyesters: Enzymatic synthesis in bulk and thermal properties 

      Núñez Gallego, María; Muñoz Guerra, Sebastián; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon (Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-11)
      Article
      Accés obert
      This work explores for the first time the enzymatic synthesis of poly(butylene-co-e-caprolactone) (PBSCL) copolyesters in bulk using commercially available monomers (dimethyl succinate (DMS), 1,4-butanediol (BD), and ...
    • Poly(butylene succinate-ran-epsilon-caprolactone) copolyesters: Enzymatic synthesis and crystalline isodimorphic character 

      Batista Ciulik, Claudio; Safari, Maryam; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Morales Huerta, Juan Carlos; Iturrospe, Amaia; Arbe, Arantxa; Müller, Alejandro J.; Muñoz Guerra, Sebastián (2017-10-01)
      Article
      Accés obert
      In this paper, the preparation of PBS-ran-PCL copolyesters by enzymatic ring opening polymerization is presented for the first time. The copolyesters were produced in a wide composition range and free of metallic contaminants, ...