Articles producció científica> Química Analítica i Química Orgànica

Advances in the design of self-supported ion-conducting membranes-new family of columnar liquid crystalline polyamines. Part 1: Copolymer synthesis and membrane preparation

  • Identification data

    Identifier: PC:1948
    Authors:
    Xavier MontanéKrzysztof Artur BogdanowiczGianmarco ColaceJose Antonio ReinaPierfrancesco CerrutiAlbena LedererMarta Giamberini
    Abstract:
    DOI: 10.1016/j.polymer.2016.10.047 URL: http://www.sciencedirect.com/science/article/pii/S0032386116309661 Filiació URV: SI Inclòs a la memòria: SI
  • Others:

    Author, as appears in the article.: Xavier Montané; Krzysztof Artur Bogdanowicz; Gianmarco Colace; Jose Antonio Reina; Pierfrancesco Cerruti; Albena Lederer; Marta Giamberini
    Department: Química Analítica i Química Orgànica Enginyeria Química
    URV's Author/s: MONTANÉ MONTANÉ, XAVIER; Krzysztof Artur Bogdanowicz; Gianmarco Colace; REINA LOZANO, JOSÉ ANTONIO; Pierfrancesco Cerruti; Albena Lederer; GIAMBERINI ., MARTA
    Keywords: Chemical modification Columnar mesophase Membranes
    Abstract: Poly[2-(aziridin-1-yl)ethanol] (PAZE) is a suitable polyamine candidate which can be dendronised with 3,4,5-tris[4-(n-dodecan-1-yloxy)benzyloxy]benzoic acid (TAP) in order to obtain liquid crystalline columnar polyamines, as previously reported. However, the resulting copolymers evidenced a strong tendency to crystallise which leads to the detriment of columnar phase stability and the mechanical properties of the resulting polymeric membranes. In order to overcome this drawback, we successfully prepared LC columnar polyamines based on poly[2-(aziridin-1-yl)ethanol] modified with both TAP and benzoyl chloride at different extents. The presence of the dendron group induces self-assembling into a columnar structure, due to an exo-recognition of the side-chain dendrons, while the benzoyl group is expected to inhibit polymer crystallinity. All copolymers, except one, have lower melting points and exhibit higher clearing temperatures (Tc), when compared to the LC polyamines obtained by modification of PAZE with TAP only, reported in previous studies. In all cases they exhibited LC columnar mesophases after annealing, as inferred by DSC, XRD and POM. When casted as membranes, these columnar copolyamines can be homeotropically oriented under thermal treatment at optimal conditions, as was confirmed by X-ray diffraction studies at low 2θ angles. Additionally, SEM microscopy was used in order to evaluate the morphology of the prepared membranes.
    Research group: Polimers Meteorgrup
    Thematic Areas: Química Química Chemistry
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0032-3861
    Author identifier: 0000-0002-1426-239X; 0000-0001-8526-626X; n/a; 0000-0002-9245-4135; 0000-0003-0822-2866; n/a; 0000-0001-8278-3552
    Record's date: 2016-11-23
    Last page: 309
    Journal volume: 105
    Papper version: info:eu-repo/semantics/acceptedVersion
    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0032386116309661?via%3Dihub
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1016/j.polymer.2016.10.047
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2016
    First page: 298
    Publication Type: Article Artículo Article
  • Keywords:

    Biomimètica
    Polímers cristal·lins
    Membranes (Tecnologia)
    Chemical modification
    Columnar mesophase
    Membranes
    Química
    Química
    Chemistry
    0032-3861
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