Exploració per autor "Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon"
Ara es mostren els items 45-64 de 110
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Hydrolizable aromatic copolyesters of p-dioxanone
(2010-09-13)
Article
Accés restringit per política de l'editorialEntropically driven ring-opening copolymerization of mixtures of a fraction of cyclic oligo(hexamethylene terephthalate)s composed of cycle sizes from 2 to 5 and p-dioxanone was used to prepare random copolyesters covering ... -
Hydrolytic degradation of D-mannitol-based polyurethanes
(2018-07-01)
Article
Accés obertThe capacity of redox D-mannitol-based polyurethanes to modulate the glutathione response under physiological conditions, as well as their effectiveness for sustained and site-specific drug release in the gastrointestinal ... -
Hydrophobic modification of poly(gamma-glutamic acid) by grafting 4-phenyl-butyl side groups for the encapsulation and release of doxorubicin
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-05-16)
Article
Accés obertThe delivery of drugs is a great challenge, since most of active pharmaceutical ingredients developed today are hydrophobic and poorly water soluble. From this perspective, drug encapsulation on biodegradable and biocompatible ... -
Hydroxyl-functionalized amphiphilic triblock copolyesters made of tartaric and lactic acids: Synthesis and nanoparticle formation
(2018-05-01)
Article
Accés obertBio-based triblock copolyesters were synthesized by ring-opening polymerization of l-lactide in solution using a hydroxyl-ended polytartrate as di-functional macroinitiator. This telechelic polyester with a Mn about ... -
Ionic complexes of poly(gamma-glutamic acid) with alkyltrimethylphosphonium surfactants
(Elsevier, 2017-05-05)
Article
Accés obertA series of ionic complexes with a comb-like architecture and a nearly stoichiometric composition were prepared from bacterial poly(gamma,dl-glutamic acid) (PGGA) and alkyltrimethyl phosphonium bromides (nATMP·Br) bearing ... -
Ionic complexes of polyacids and cationic surfactants
(2010-10-01)
Article
Accés restringit per política de l'editorialComb-like ionic complexes were prepared from polyuronic acids (pectinic and alginic acids) and alkyltrimethylammonium surfactants bearing linear alkyl chains with 18, 20 and 22 carbon atoms. In the condensed state, these ... -
Isocyanate toughened pCBT: reactive blending and tensile properties
(2013-02-01)
Article
Accés obertCyclic 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. ... -
Isohexide and sorbitol-derived, enzymatically synthesized renewable polyesters with enhanced Tg
(2016-10-10)
Article
Accés obertSugar-based polyesters derived from sorbitol and isohexides were obtained via solvent-free enzymatic catalysis. Pendant hydroxyl groups, coming from the sorbitol units, were present along the polyester backbone, whereas ... -
Isomannide-containing poly(butylene 2,5-furandicarboxylate) copolyesters via ring opening polymerization
(American Chemical Society (ACS), 2018-05-08)
Article
Accés obertCyclic oligomers of isomannide 2,5-furandicarboxylate were synthesized using the high dilution condensation method. A mixture of dimer, trimer, and tetramer species largely enriched in dimer was obtained. These cyclic ... -
Metal-free catalyzed ring-opening polymerization and block copolymerization of ¿-pentadecalactone using amino-ended initiators
(Elsevier, 2018-11-01)
Article
Accés obertMetal-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
(2012-08-14)
Article
Accés restringit per política de l'editorialMicrobial 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
(2016-09-01)
Article
Accés obertComb-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
(2014-12-01)
Article
Accés restringit per política de l'editorialThe 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
(2017-12-12)
Article
Accés obertTwo 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
(2022)
Comunicació de congrés
Accés obertOne 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
(2014-09-01)
Article
Accés restringit per política de l'editorialEsterification 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
(2016)
Text en actes de congrés
Accés obertIn 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)
(2021-03-14)
Article
Accés obertMonomers 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)
(2014-01-15)
Article
Accés restringit per política de l'editorialThe 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
(Multidisciplinary Digital Publishing Institute (MDPI), 2018-12-01)
Capítol de llibre
Accés obertCyclic 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 ...
