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Table 2 Catalytic dimerization performance of hybrid catalysts

From: A novel Brönsted–Lewis acidic heteropoly organic–inorganic salt: preparation and catalysis for rosin dimerization

Catalysts

Softening point (°C)

Acid value (mg/g)

Gum rosin

80.4

164.0

Blank

88.3

165.0

H3PW12O40

86.5

137.8

[TEAPS]3PW12O40

103.7

134.7

Sm0.66[TEAPS]PW12O40

111.9

147.9

Sm0.33[TEAPS]2PW12O40

120.1

111.8

  1. Reaction conditions: catalyst 5.0 g, rosin 15 g, toluene 18 mL, 90 °C, 10 h