Synthesis of Well-Defined Vinyl End-Functional Polystyrene Using Multifunctional Initiator by Atom Transfer Radical Polymerization

Abstract

Atom Transfer Radical Polymerization (ATRP) has proven to be a powerful technique to obtain polymers with narrow polydispersities and controlled molecular weight. It also offers control over chain-ends. N-allyl-2-bromopropinamide (ABPN) was synthesized by one step reaction which involved on amidification of 2-bromo-propionyl bromide with allyl amine. 1 H NMR has confirmed the structure of the ABPN. The well-defined polystyrene was synthesized by using ABPN as initiator in ATRP method. The results of the polymerization were significantly affected by reaction conditions. The vinyl end-functional polystyrene obtained was characterized by Gel Permeation Chromatography (GPC) and NMR analysis.

Synthesis of polyamino styrene from post-consumption expanded polystyrene and analysis of its CO2 scavenger capacity

“…5b). In the same way, a broad signal without defined multiplicity was observed to 6.61 ppm and properly assigned to the ortho-H protons (2, 2′), finally toward low frequencies, the signals were related with aliphatic protons and were identified to 1.46 and 1.88 ppm (6-H and 5-H, respectively) (Chowdhury et al 2015). On the other hand, the 1 H-NMR PSNO 2 (Fig.…”