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Synthesis of low-molecular weight itaconic acid polymers as nanoclay dispersants and dispersion stabilizers
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SYSNO ASEP 0565807 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synthesis 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, ORCIDArticle number 125614 Source Title Polymer. - : Elsevier - ISSN 0032-3861
Roč. 265, 16 January (2023)Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords polyelectrolyte synthesis ; renewable polymer ; clay dispersant Subject RIV CD - Macromolecular Chemistry OECD category Polymer science R&D Projects GF21-07004K GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UMCH-V - RVO:61389013 UT WOS 000906412800001 EID SCOPUS 85143858069 DOI 10.1016/j.polymer.2022.125614 Annotation Itaconic 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. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S0032386122011028?via%3Dihub
Number of the records: 1