The synthesis of aromatic ketimines via hydroamination phenylacetylenes (PAs) with anilines (ANs) has been accomplished in high yields and excellent regio- stereo-selectivity using gold nanoparticles (AuNPs) embedded crystalline syndiotactic polystyrene-cis-1,4-polybutadiene (sPSB) multiblock copolymer matrix. performances the AuNPs-sPSB catalyst exceed those other commercial catalysts as a res...

Catalytic aqueous polymerization of butadiene by the cobalt catalyst system [Co(C8H13)(C4H6)]/CS2 affords colloidally stable latices of highly crystalline syndiotactic 1,2-polybutadiene (Tm ) 190 °C, ∆Hc ) 60 J/g, Mw ∼ 105 g/mol, 97% 1,2, 3% 1,4-cis). Catalyst modification with reagents containing electrophilic carbon atoms (e.g., aromatic formamides) strongly decreases polymer crystallinity (T...

The purpose of this research was to develop an applicable sampling and analytical method to determine airborne 4-vinyl-1-cyclohexene concentrations which are usually found in the atmosphere of polybutadiene factories. A solid sorbent tube, containing two sections (100 mg in the front and 50 mg in the back) of activated coconut-shell charcoal was chosen for sampling 4-vinyl-1-cyclohexene vapor. ...