Abstract
Reported herein is the excellent example of regio-/stereoselective coordination copolymerization of propylene with p-(3-butenyl)styrene (BSt) which produces exclusively high molecular weight (Mw > 50 × 103) isotactic polypropylenes (iPPs) with abundant ethenylbenzene (styrene) groups (>5 mol %) by use of non-metallocene catalyst. The current (pyridylamido)Hf/[Ph3C][B(C6F5)4]/AliBu3 system, which exhibits overwhelmingly favorable reactivity toward α-olefin over styrene moieties, effectively promoted the copolymerization of propylene with BSt under judiciously chosen reaction conditions, in which catalytic activity (1.35 kg polymer/(mmolHf h), molecular weight (Mw = 102 × 103), styrene group content (8.31 mol %), and tacticity ([mmmm] > 99%) reached a satisfying level simultaneously for the first time. Side group functionalized iPPs were synthesized in an almost quantitative way via the UV-light-initiated thiol–ene click chemistry and iodine-catalyzed hydroalkylation reaction of the resultant propylene/BSt ...
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
