I extracted Lignin from various biological waste material. I am going to prepare adhesives from lignin. before that I have to estimate hydroxyl content and methoxyl content in lignin as both are dominating factors in adhesives. can any body suggest the best suited protocols for this two tests?
María Cristina Area
There is a lot of information available and different methods.
Attached is a chapter summarizing some of them.
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Yusuf Celikbag
31P-NMR is a great tool to determine the OH content. Check this out:
http://www.sciencedirect.com/science/article/pii/S0960852416305533
http://onlinelibrary.wiley.com/doi/10.1002/app.42239/full
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TriDung(T.-D.) Ngo
You can find attached file for some information.
Hope this will help.
Regards,
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