Synthesis and performance evaluation of temperature and salt-resistant organic/inorganic composite copolymers

Figures & data

Table 1. Water composition analysis.

Salt ion concentration (mg/L)						Total (mg/L)
Na^+	Ca^2+	Mg^2+	HCO3^−	SO4^2-	Cl^−
6100	50	230	100	230	6100	12810
10811	409	1347	149	2848	19127	34691

Table 2. Equipments.

Instruments	Model/Company
Scanning electron microscopy (SEM)	Nova Nano 450
Fourier transform infrared (FTIR)	Spectro One PerkinElmer Ltd.
Brinell Viscometer	Brookfield DV-II+Pro
Soxhlet Extractor	ZM-SXT-04
Multi-angle particle size and high sensitivity zeta potential analyzer	/

Figure 1. Synthesis of ternary/quaternary composite copolymers.

Figure 2. FT-IR functional group characterization and SEM image.

Table 3. The effect of monomer ratio and concentration on ternary copolymers.

AM/g	AMPS/g	Si-St/g	Ammonium sulfate/g	Dispersant/g	Initiator/g	Crosslinker/g	water/g	Status
4.0	0.6	0.6	11.2	0.9	0.0360	0.009	40	Emulsion
4.8	0.6	0.6	11.2	0.9	0.0360	0.009	40	Emulsion
5.6	0.6	0.6	11.2	0.9	0.0360	0.009	40	Unstable emulsion
6.4	0.6	0.6	11.2	0.9	0.0360	0.009	40	Gel
7.2	0.6	0.6	11.2	0.9	0.0360	0.009	40	Gel

Figure 3. The effect of different monomer concentrations on viscosity.

Figure 4. Effects of salinity of different salt species on viscosity and particle size of tri-quaternary copolymers.

Figure 5. Effect of different salinity on viscosity of the copolymer.

Figure 6. Variation of terpolymer appearance with hydration time.

Figure 7. SEM images of quaternary composite copolymers at different hydration times.

Figure 8. Particle size changes of two copolymers after being placed at different times.

Data availability statement

The data that support the findings of this study are available on request from the corresponding author, Jiamei Quan. The data are not publicly available due to their containing information that could compromise the privacy of research participants.