Table 3.

Compounds detected in TG-MS analysis for lignin–silica hybrid fillers and pure lignin.

Compound	Lignin–SiO2 (8:1, wt./wt.)	Lignin–SiO2 (8:2, wt./wt.)	Lignin–SiO2 (8:4, wt./wt.)	Lignin–SiO2 (8:6, wt./wt.)	Lignin
Carbon dioxide	+	+	+	+	+
Sulfur dioxide	+	+	+	+	+
Methanethiol	+	+	+	+	+
Acetone	+	+	+	+	+
Dimethyl sulfide	+	+	+	+	+
Acetic acid	+	+	+	+	+
Furan, 3-methyl	+	+	+	−	−
1,3-cyclohexadiene	+	+	+	−	−
2-propanone, 1-hydroxy	+	+	+	+	+
Benzene	+	+	+	+	-
Phenol	+	+	+	+	+
Phenol, 2-methyl	+	+	+	+	+
P-cresol	+	+	+	+	+
Phenol, 2-methoxy	+	+	+	+	+
Benzene, 1,2-dimethoxy	+	+	+	+	+
Phenol, 2,4-dimethyl	+	+	+	+	+
Phenol, 2,3-dimethyl	+	+	+	+	+
Phenol, 4-ethyl	+	+	+	+	+
Cresol	+	+	+	+	+
Benzene, 1-ethyl-2-methoxy	+	−	−	−	−
Benzene, 4-ethyl-2-methoxy	+	+	+	−	+
2-methoxy-4-vinylphenol	+	−	−	−	+
Vanillin	+	+	+	−	+