Vinyl Ester Oligomer Crosslinked Porous Polymers Prepared via Surfactant-Free High Internal Phase Emulsions

Table 2

With VER-St or VER-MMA as organic phase, poly-Pickering-HIPEs were prepared via varied aqueous phase volume fraction^a.

Run^b	𝑓𝑤^c/%	Dv^d/μm	𝐸^e/MPa
SV20-80	80	17	24.8
SV20-90	90	40	16.8
SV20-95	95	63	1.1
SV20-97	97	—	—
MV20-80	80	20	22.3
MV20-90	90	41	15.4
MV20-95	95	122	1.8
MV20-97	97	—	—

^aThe NaCl concentration (relative to the aqueous phase) was 0.2 mol L⁻¹, and the copolymer particles content (relative to the aqueous phase) was 1.0 wt%.
^bSV20-80, SV20-90, SV20-95, and SV20-97: VER-St containing VEO of 20 wt% as organic phase; MV20-80, MV20-90, MV20-95, and MV20-97: VER-MMA containing VEO of 20 wt% as organic phase.
^cAqueous phase volume fraction.
^dAverage void diameter, calculated from SEM images.
^eElastic modulus.