International Journal of Polymer Science / 2015 / Article / Tab 2

Research Article

Mixture Design Approach on the Physical Properties of Lignin-Resorcinol-Formaldehyde Xerogels

Table 2

Matrix and results for extreme vertices mixing design (mass fraction).

NumberpH (g/cm3) Rs (%)

10.040.0040.080.00030.87576.60.79559.77
20.30.0040.080.00030.61575.87nm42.35
30.040.030.080.00030.84975.15ngng
40.30.030.080.00030.58974.321.12942.56
50.040.0040.20.00030.75576.530.88159.18
60.30.0040.20.00030.49575.80.5474.86
70.040.030.20.00030.72974.86ngng
80.30.030.20.00050.46954.840.5434.29
90.30.030.20.00030.46974.360.5844.98
100.040.0040.080.020.8568.47nm52.87
110.30.0040.080.020.5967.850.65635.77
120.040.030.080.020.838.65nm49.17
130.30.030.18050.020.46957.641.09120.69
140.30.030.080.020.577.730.77035.05
150.040.0040.20.020.7368.53nm54.24
160.30.01050.20.020.46957.171.09822.44
170.30.0040.20.020.4767.151.15122.23
180.28050.030.20.020.46957.151.18822.70
190.040.030.20.020.718.2nm54.18
200.040.0040.080.00030.87576.250.87759.04

nm: not measurable; ng: not gel formation.