This brief outlines the most recent advances in the production of polyols and polyurethanes from renewable resources, mainly vegetable oils, lignocellulosic biomass, starch, and protein. The typical processes for the production of polyols from each of the above mentioned feedstocks are introduced and the properties of the resultant polyols and polyurethanes are also discussed.
Iran has one of the world’s highest rates of drug addiction, estimated to be between two and seven per cent of the entire population. This makes the questions this book asks all the more salient: what is the place of illegal substances in the politics of modern Iran?