Making particle size library of polystyrene latexes prepared through surfactant-free emulsion polymerization: from nano to micronsize

Polystyrene latexes where the stabilizing moiety originated from I) the inistab (initiator + stabilizer), 4,4'- Azobis(4-cyanopentanoic acid) (ACPA), II) acrylic acid (AA) (in situ copolymerized) or/and III) previously synthesized poly(acrylic acid)- block -polystyrene (PAA- b -PS) were prepare...

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Bibliographic Details
Published in:Journal of polymer research 2023-06, Vol.30 (6), Article 208
Main Authors: Ramezanpour, Maede, Nikzad, Elham, Rezaee Shirin-Abadi, Abbas
Format: Article
Language:English
Subjects:
Acrylic acid
Block copolymers
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Copolymerization
Emulsion polymerization
Industrial Chemistry/Chemical Engineering
Latex
Nucleation
Original Paper
Particle size
Polyacrylic acid
Polymer Sciences
Polymerization
Polystyrene
Polystyrene resins
Sodium
Surface active agents
Surfactants
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Summary:Polystyrene latexes where the stabilizing moiety originated from I) the inistab (initiator + stabilizer), 4,4'- Azobis(4-cyanopentanoic acid) (ACPA), II) acrylic acid (AA) (in situ copolymerized) or/and III) previously synthesized poly(acrylic acid)- block -polystyrene (PAA- b -PS) were prepared via surfactant-free emulsion polymerization (SFEP). This attitude of incorporating the sodium carboxilate groups (COO − Na + ) as negatively charged stabilizing moieties in different materials yield quite different nucleation mechanism. Therefore, the different particle size would be expected. The average size of latex particles were ranged from 1.3 micron to 50 nm. Using ACPA as the only stabilizer produced latexes that were ranged from 200 nm to 1.3 micron. In contrast, when the stabilizing moieties originated from PAA- b -PS, the latexes exhibited the size below the 100 nm. By combining the use of both in situ polymerized ACPA inistab, AA monomer with/without PAA- b -PS, we were able to produce latexes with tunable polystyrene particle sizes.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-023-03582-0