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. 2022 Jun 30;38(27):8187–8199. doi: 10.1021/acs.langmuir.2c00327

Table 1. Summary of the Sterically Stabilized Latexes Used in This Work.

entrya target composition conversionb (%) Dhc (nm) DTEMd (nm)
1 P2VP32–PBzMA300 99 139 (0.098) 88 ± 7
2 P2VP67–PBzMA300 99 149 (0.057) 102 ± 8
3 PKSPMA32–PBzMA300 99 177 (0.040) 132 ± 4
4 PEGMA-stabilized P2VP 96 222 (0.052) 173 ± 5
5 PBzMA 96 289 (0.051) 234 ± 21
a

Entries 1 and 2 were prepared via RAFT aqueous emulsion polymerization at 70 °C using P2VP as a macromolecular chain-transfer agent (macro-CTA) and at pH 2.5 and 3.0, respectively. Entry 3 was prepared via RAFT emulsion polymerization at 70 °C using PKSPMA as a macro-CTA in a methanol/water mixture at an alcohol content of 33% w/w. Entry 4 was prepared via conventional emulsion polymerization at 60 °C using 10% w/w nonionic PEGMA stabilizer, 10% w/w Aliquot 336 surfactant, and 1% w/w DVB cross-linker. Entry 5 was synthesized via RAFT miniemulsion polymerization at 70 °C at a dispersed phase concentration of 20% w/w and using 2.4% w/w hexadecane and 7.8% w/w Lutensol TO 20 relative to BzMA ([BzMA]:[PETTCCP]:[AIBN] = 600:2:1).

b

Monomer conversions were determined via gravimetry.

c

Mean hydrodynamic diameter obtained via DLS, where DLS polydispersity index values are indicated in brackets.

d

Mean TEM particle diameters were calculated by analyzing 200 particles using ImageJ software.