New organic-inorganic polyurethane-based hybrids with enhanced mechanical properties and thermal insulation are reported. Polyurethane-based characterized by the intimate interactions of their inorganic organic co-networks prepared sol-gel approach, have exhibited exceeding those polyurethane foams, e.g. stability, durability insulating effectiveness. However, previously been poor. Here, new po...

Abstract Novel chiral selectors based on cellulose 2,3- bis (3,5-dimethylphenyl carbamate)-6-( ? -phenylethyl carbamate) were regioselectively synthesized by carbonate aminolysis and isocyanate chemistry. By oxycarbonylation with phenyl chloroformate, carbamoylation 3,5-dimethylphenyl isocyanate, subsequent of the previously introduced reactive moiety at C6 enantiopure ( R )-or S )- -phenylethy...