Binder compositions and methods for making and using same

A method for making a composite product, comprising:

• combining a plurality of lignocellulose substrates, at least one polyphenolic compound, at least one unsaturated compound, and at least one free radical precursor to produce a mixture, wherein the unsaturated compound has two or more unsaturated carbon-carbon bonds, and wherein at least one of the unsaturated carbon-carbon bonds is a pi-bond that is not conjugated with an aromatic moiety and is capable of free radical addition;
• and
• heating the mixture to a temperature of about 60° C. to about 300° C. to produce a composite product.