Article: RAFT-Mediated Polymerization-Induced Self-Assembly of Poly(Acrylic Acid)-b-Poly(Hexafluorobutyl Acrylate): Effect of the pH on the Synthesis of Self-Stabilized Particles

This paper describes a very simple strategy towards self-stabilized poly(acrylic acid)--poly(hexafluorobutyl acrylate) (PAA--PHFBA) block copolymer particles via reversible addition-fragmentation chain transfer (RAFT)-mediated polymerization-induced self-assembly. Hexafluorobutyl acrylate (HFBA) monomer conversion and number-average molar mass of PAA--PHFBA increased gradually with the increase in the pH value of the aqueous phase. When pH < 10, the molecular weight distributions of PAA--PHFBA were narrow, however, when the pH was raised to 11.55, PAA--PHFBA block copolymers had a broader distribution ( = 1.82) with a serious trailing toward the low molecular weight. Furthermore, the morphology and size of PAA--PHFBA latex particles were measured by transmission electron microscopy and dynamic light scattering. The results indicated that the PAA--PHFBA latex particles had a clear spherical core-shell structure and the latex particles' size increased with the increase of pH value.

Citing Articles

NON-ENZYMATIC ELECTROCHEMICAL DETECTION OF GLUTAMATE USING TEMPLATED POLYMER-BASED TARGET RECEPTORS.

Ahmad H, Si B, Dutta G, Csoros J, Seitz W, Song E Int Solid State Sens Actuators Microsyst Conf. 2020; 2019:613-616.

PMID: 32719735 PMC: 7384742. DOI: 10.1109/transducers.2019.8808688.

Erratum: RAFT-Mediated Polymerization-Induced Self-Assembly of Poly(Acrylic Acid)-b-Poly(Hexafluorobutyl Acrylate): Effect of the pH on the Synthesis of Self-Stabilized Particles. Polymers, 2016, 8, 207.

Zhou J, He R, Ma J Polymers (Basel). 2019; 8(11).

PMID: 30974662 PMC: 6431854. DOI: 10.3390/polym8110384.

Polyisoprene-Silica Nanoparticles Synthesized via RAFT Emulsifier-Free Emulsion Polymerization Using Water-Soluble Initiators.

Tumnantong D, Rempel G, Prasassarakich P Polymers (Basel). 2019; 9(11).

PMID: 30965935 PMC: 6418711. DOI: 10.3390/polym9110637.

References

1.

Yeole N, Hundiwale D, Jana T . Synthesis of core-shell polystyrene nanoparticles by surfactant free emulsion polymerization using macro-RAFT agent. J Colloid Interface Sci. 2010; 354(2):506-10. DOI: 10.1016/j.jcis.2010.11.021. View

2.

Chaduc I, Zhang W, Rieger J, Lansalot M, DAgosto F, Charleux B . Amphiphilic block copolymers from a direct and one-pot RAFT synthesis in water. Macromol Rapid Commun. 2011; 32(16):1270-6. DOI: 10.1002/marc.201100240. View

3.

Blanazs A, Madsen J, Battaglia G, Ryan A, Armes S . Mechanistic insights for block copolymer morphologies: how do worms form vesicles?. J Am Chem Soc. 2011; 133(41):16581-7. DOI: 10.1021/ja206301a. View

4.

Sugihara S, Blanazs A, Armes S, Ryan A, Lewis A . Aqueous dispersion polymerization: a new paradigm for in situ block copolymer self-assembly in concentrated solution. J Am Chem Soc. 2011; 133(39):15707-13. DOI: 10.1021/ja205887v. View

5.

Sauer R, Froimowicz P, Scholler K, Cramer J, Ritz S, Mailander V . Design, synthesis, and miniemulsion polymerization of new phosphonate surfmers and application studies of the resulting nanoparticles as model systems for biomimetic mineralization and cellular uptake. Chemistry. 2012; 18(17):5201-12. DOI: 10.1002/chem.201103256. View

RAFT-Mediated Polymerization-Induced Self-Assembly of Poly(Acrylic Acid)-b-Poly(Hexafluorobutyl Acrylate): Effect of the PH on the Synthesis of Self-Stabilized Particles