From: Analysis of recycled poly (styrene-co-butadiene) sulfonation: a new approach in solid catalysts for biodiesel production
Temperature time
30°C
70°C
110°C
1 h
0.42 ± 0.01
4.30 ± 0.17
2.66 ± 0.15
3 h
1.23 ± 0.06
5.13 ± 0.21
2.40 ± 0.20
5 h
0.82 ± 0.03
3.83 ± 0.12
N/A