Lignosulfonates, oxidative cross-linking

Scheme 1. Partial mechanism of oxidative cross-linking of lignosulfonates.

The other cross-linking mixtures studied and involving oxidative activation included ammonium and magnesium lignosulfonates in combination with HgOg/HCl. The boards produced were, however, inferior to the above (77). 

Participation of the wood surface has not been stressed much in nonconventional bonding based on cross-linking of carbohydrates in the presence of weak acids (110), cross-linking of lignosulfonates in the presence of strong acids (111-17), and based on cross-linking of lignosulfonates in the presence of oxidants (106—9). At the same time... 

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