P(LMA-co-tBMA-co-MAA) Copolymers Bearing Amphiphilic and Polyelectrolyte Characteristics: Synthetic Aspects and Properties in Aqueous Solutions.

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Title: P(LMA-co-tBMA-co-MAA) Copolymers Bearing Amphiphilic and Polyelectrolyte Characteristics: Synthetic Aspects and Properties in Aqueous Solutions.
Authors: Balafouti, Anastasia1,2 (AUTHOR), Pispas, Stergios1,2 (AUTHOR) pispas@eie.gr
Source: Polymers (20734360). Jun2025, Vol. 17 Issue 11, p1473. 18p.
Subjects: Proton magnetic resonance, Random copolymers, Gel permeation chromatography, Nuclear magnetic resonance, Biomedical materials, Attenuated total reflectance
Abstract: In this study, we explore the design of novel random poly(lauryl methacrylate-co-tert-butyl methacrylate-co-methacrylic acid), P(LMA-co-tBMA-co-MAA) copolymers via the RAFT copolymerization of LMA and tBMA followed by the selective hydrolysis of tBMA segments. For the molecular characterization of the novel copolymer, a series of physicochemical techniques were implemented, including size exclusion chromatography (SEC), proton nuclear magnetic resonance (1H-NMR) and attenuated total reflectance–Fourier transform infrared (ATR–FTIR) spectroscopy. Our experimental results confirmed the successful synthesis of the targeted copolymers. The compositions were in accordance with the targeted differing fraction of hydrophobic tBMA/LMA elements, and hydrolysis resulted in at least 64% conversion to hydrophilic MAA units. The copolymers, bearing both an amphiphilic character and polyelectrolyte properties while being composed of randomly distributed monomeric segments of biocompatible materials, were subsequently investigated in terms of their self-assembly behavior in aqueous solutions. Dynamic light scattering and fluorescence spectroscopy experiments demonstrated the formation of self-assembled nanoaggregates (average hydrodynamic radii, Rh < 100 nm) that formed spontaneously, having low critical aggregation concentration (CAC) values (below 3.5 × 10−6 g/mL), and highlighted the feasibility of using these copolymer systems as nanocarriers for biomedical applications. [ABSTRACT FROM AUTHOR]
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  Data: P(LMA-co-tBMA-co-MAA) Copolymers Bearing Amphiphilic and Polyelectrolyte Characteristics: Synthetic Aspects and Properties in Aqueous Solutions.
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  Data: In this study, we explore the design of novel random poly(lauryl methacrylate-co-tert-butyl methacrylate-co-methacrylic acid), P(LMA-co-tBMA-co-MAA) copolymers via the RAFT copolymerization of LMA and tBMA followed by the selective hydrolysis of tBMA segments. For the molecular characterization of the novel copolymer, a series of physicochemical techniques were implemented, including size exclusion chromatography (SEC), proton nuclear magnetic resonance (1H-NMR) and attenuated total reflectance–Fourier transform infrared (ATR–FTIR) spectroscopy. Our experimental results confirmed the successful synthesis of the targeted copolymers. The compositions were in accordance with the targeted differing fraction of hydrophobic tBMA/LMA elements, and hydrolysis resulted in at least 64% conversion to hydrophilic MAA units. The copolymers, bearing both an amphiphilic character and polyelectrolyte properties while being composed of randomly distributed monomeric segments of biocompatible materials, were subsequently investigated in terms of their self-assembly behavior in aqueous solutions. Dynamic light scattering and fluorescence spectroscopy experiments demonstrated the formation of self-assembled nanoaggregates (average hydrodynamic radii, Rh &lt; 100 nm) that formed spontaneously, having low critical aggregation concentration (CAC) values (below 3.5 &#215; 10−6 g/mL), and highlighted the feasibility of using these copolymer systems as nanocarriers for biomedical applications. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/polym17111473
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 1473
    Subjects:
      – SubjectFull: Proton magnetic resonance
        Type: general
      – SubjectFull: Random copolymers
        Type: general
      – SubjectFull: Gel permeation chromatography
        Type: general
      – SubjectFull: Nuclear magnetic resonance
        Type: general
      – SubjectFull: Biomedical materials
        Type: general
      – SubjectFull: Attenuated total reflectance
        Type: general
    Titles:
      – TitleFull: P(LMA-co-tBMA-co-MAA) Copolymers Bearing Amphiphilic and Polyelectrolyte Characteristics: Synthetic Aspects and Properties in Aqueous Solutions.
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            NameFull: Balafouti, Anastasia
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            NameFull: Pispas, Stergios
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          Dates:
            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
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