نتایج جستجو برای: polystyrenes

تعداد نتایج: 5181  

Journal: :Processes 2023

The increasingly intense consumption of plastics and, above all, their improper disposal in the environment are causing serious environmental concerns. Great efforts have been made for development new methods aimed at facilitating and speeding up identification sorting different materials plastic recycling process. In this field, strategies based on fluorescent tagging developed. This work conc...

Journal: :Molecules 2016
Anna Maria Pia Salvo Francesco Giacalone Michelangelo Gruttadauria

In this review, the most recent advances (2014-2016) on the synthesis of new polymer-supported catalysts are reported, focusing the attention on the synthetic strategies developed for their preparation. The polymer-supported catalysts examined will be organic-based polymers and organic-inorganic hybrids and will include, among others, polystyrenes, poly-ionic liquids, chiral ionic polymers, den...

2016
Norio Nakata Tomoyuki Toda Yusuke Saito Takanori Watanabe

[OSSO]-type dibenzyl zirconium(IV) complexes 9 and 10 possessing aryl substituents ortho to the phenoxide moieties (ortho substituents, phenyl and 2,6-dimethylphenyl (Dmp)) were synthesized and characterized. Upon activation with dMAO (dried methylaluminoxane), complex 9 was found to promote highly isospecific styrene polymerizations ([mm] = 97.5%–99%) with high molecular weights Mw up to 181,0...

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1973

Journal: :Bulletin of the Korean Chemical Society 2013

Journal: :Bulletin of the Chemical Society of Japan 1960

Journal: :Journal of the American Chemical Society 2006
Bryan D Korth Pei Keng Inbo Shim Steven E Bowles Chuanbing Tang Tomasz Kowalewski Kenneth W Nebesny Jeffrey Pyun

A novel synthetic route to polymer-coated ferromagnetic colloids of metallic cobalt has been developed. Well-defined end-functional polystyrenes were synthesized using controlled radical polymerization and used as surfactants in the thermolysis of dicobaltoctacarbonyl to afford uniform ferromagnetic nanoparticles. The presence of the polymer shell enabled prolonged colloidal stability of disper...

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