Effects of Lignin-Derived Polycarboxylic Acids on the Properties of Waterborne Polyurethane Elastomers

Table 3

Weight percentage of the residue (w_r), temperature of the weight loss peak of the soft segments (t_SS) and the hard segments (t_HS) of LPCA-WPU elastomers with different loadings of LPCAs.

LPCA loading	w r	t SS (°C)	t HS (°C)
0 wt%	1.132%	308.06	401.14
1.0 wt%	3.782%	266.41	402.54
2.5 wt%	3.206%	268.47	402.20
5.0 wt%	4.439%	253.75	398.90