Hello Bruno, Thanks for your reply. I couldnt understand how can it be a biocomposite when we mix the oil based resin with styrene(2:1 weight ratio), and in most studies, soybean resin is mixed with styrene to be cronsslinked. I want to cure it without styrene to make it more or really bio. In the conference paper you sent, there is no styrene, just free radical initiator (tert-butyl peroxybenzoate) is used. I ll try that one first of all :) Thank you so much!
I understand your concern about this wide definition of "bio"...However, that's how most researchers consider. Sometimes, it is just enough to have a bio-component no matter how much you have of other "bad stuff".
I hope this route using a radical initiation will be helpful for you.