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Free Radical Entry in Emulsion Polymerization: A Comprehensive Theory.

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Title: Free Radical Entry in Emulsion Polymerization: A Comprehensive Theory.
Authors: Herrera‐Ordonez, Jorge1 (AUTHOR) jorge_ho67@fata.unam.mx
Source: Macromolecular Reaction Engineering. Jun2025, Vol. 19 Issue 3, p1-14. 14p.
Subjects: Free radicals, Emulsion polymerization, Polymerization, Radicals (Chemistry), Mathematical models, Coagulation, Electrostatic interaction
Abstract: A comprehensive mathematical model for radical entry into polymer particles is proposed that includes equations and various mechanistic precepts from several works, including those of the author. The model allows estimating the contribution of the different initiator‐derived radicals to the overall particle entry rate (ρ). The results of the model are consistent with experimental data reported in the literature. Contrary to what is established by one of the most accepted theories, it is obtained that: 1) the determining step of the entry of water‐soluble oligoradicals is not their propagation in the aqueous phase but rather their diffusion and subsequent irreversible adsorption on the particles; 2) primary particles can also enter (coagulate) and contribute to the ρ value; 3) the electrostatic repulsion between oligoradicals and charged particles plays a very important role in determining the predominant species entering the particles. [ABSTRACT FROM AUTHOR]
Copyright of Macromolecular Reaction Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder'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. (Copyright applies to all Abstracts.)
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  Data: Free Radical Entry in Emulsion Polymerization: A Comprehensive Theory.
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  Data: <searchLink fieldCode="AR" term="%22Herrera‐Ordonez%2C+Jorge%22">Herrera‐Ordonez, Jorge</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jorge_ho67@fata.unam.mx</i>
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  Data: <searchLink fieldCode="JN" term="%22Macromolecular+Reaction+Engineering%22">Macromolecular Reaction Engineering</searchLink>. Jun2025, Vol. 19 Issue 3, p1-14. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Free+radicals%22">Free radicals</searchLink><br /><searchLink fieldCode="DE" term="%22Emulsion+polymerization%22">Emulsion polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Radicals+%28Chemistry%29%22">Radicals (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink><br /><searchLink fieldCode="DE" term="%22Coagulation%22">Coagulation</searchLink><br /><searchLink fieldCode="DE" term="%22Electrostatic+interaction%22">Electrostatic interaction</searchLink>
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  Data: A comprehensive mathematical model for radical entry into polymer particles is proposed that includes equations and various mechanistic precepts from several works, including those of the author. The model allows estimating the contribution of the different initiator‐derived radicals to the overall particle entry rate (ρ). The results of the model are consistent with experimental data reported in the literature. Contrary to what is established by one of the most accepted theories, it is obtained that: 1) the determining step of the entry of water‐soluble oligoradicals is not their propagation in the aqueous phase but rather their diffusion and subsequent irreversible adsorption on the particles; 2) primary particles can also enter (coagulate) and contribute to the ρ value; 3) the electrostatic repulsion between oligoradicals and charged particles plays a very important role in determining the predominant species entering the particles. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Macromolecular Reaction Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder'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.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1002/mren.202400047
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      – Code: eng
        Text: English
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        PageCount: 14
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    Subjects:
      – SubjectFull: Free radicals
        Type: general
      – SubjectFull: Emulsion polymerization
        Type: general
      – SubjectFull: Polymerization
        Type: general
      – SubjectFull: Radicals (Chemistry)
        Type: general
      – SubjectFull: Mathematical models
        Type: general
      – SubjectFull: Coagulation
        Type: general
      – SubjectFull: Electrostatic interaction
        Type: general
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      – TitleFull: Free Radical Entry in Emulsion Polymerization: A Comprehensive Theory.
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              M: 06
              Text: Jun2025
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              Y: 2025
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