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Synthesis of low-molecular weight itaconic acid polymers as nanoclay dispersants and dispersion stabilizers

  1. 1.
    SYSNO ASEP0565807
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleSynthesis of low-molecular weight itaconic acid polymers as nanoclay dispersants and dispersion stabilizers
    Author(s) Bednarz, S. (PL)
    Bujok, Sonia (UMCH-V) ORCID, RID
    Mielczarek, K. (PL)
    Świergosz, T. (PL)
    Wierzbicki, S. (PL)
    Konefal, Rafal (UMCH-V) RID, ORCID
    Konefal, Magdalena (UMCH-V) ORCID, RID
    Nevoralová, Martina (UMCH-V) RID, ORCID
    Pavlova, Ewa (UMCH-V) RID
    Beneš, Hynek (UMCH-V) RID, ORCID
    Article number125614
    Source TitlePolymer. - : Elsevier - ISSN 0032-3861
    Roč. 265, 16 January (2023)
    Number of pages9 s.
    Languageeng - English
    CountryGB - United Kingdom
    Keywordspolyelectrolyte synthesis ; renewable polymer ; clay dispersant
    Subject RIVCD - Macromolecular Chemistry
    OECD categoryPolymer science
    R&D ProjectsGF21-07004K GA ČR - Czech Science Foundation (CSF)
    Method of publishingLimited access
    Institutional supportUMCH-V - RVO:61389013
    UT WOS000906412800001
    EID SCOPUS85143858069
    DOI10.1016/j.polymer.2022.125614
    AnnotationItaconic oligomers with an average molecular weight of Mn = 1500–2200 g/mol and different end-groups were prepared by 2,2′-azobis(2-methyl-propionamidine) dihydrochloride (V-50) – induced radical polymerization of itaconic acid (IA) in aqueous solution at 65 °C for 24 h. Mercaptoethanol, thioglycerol, and sodium hypophosphite were used as chain transfer agents (CTA) with the molar ratio ranging from 30:3:1 to 30:3:4 of IA, V50, and CTA, respectively. The structure of the oligomers was confirmed by electrospray ionization mass spectrometry (ESI-MS) and tandem mass spectrometry (ESI-MS/MS). The excellent dispersing efficiency of the oligomers at very low concentrations for Laponite® sols was proved by oscillatory rheology and small-angle X-ray scattering (SAXS) measurements.
    WorkplaceInstitute of Macromolecular Chemistry
    ContactEva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
    Year of Publishing2024
    Electronic addresshttps://www.sciencedirect.com/science/article/pii/S0032386122011028?via%3Dihub
Number of the records: 1  

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