Synthesis and characterization of styrene/Boc-p-amino styrene copolymers

Synthesis and optical properties of copolymers of 4-aminostyrene with the side styrylquinoline chromophore groups

“…This fact can be explained by a partial transfer of electron density from the amino group to the vinyl group conjugated with it, that hinders the reaction of the latter with the free radical of initiator or growing polymeric chain. 16 In this connection, it was suggested to use 4 aminosty rene as a monomer for polymerization, whose amino group is protected by the group readily removable after polymer ization, for example, N tert butoxycarbonyl 4 aminosty rene (Boc 4 aminostyrene), 16 that allowed one to obtain polymers with acceptable characteristics. Boc 4 aminostyrene 1 was obtained from 4 aminosty rene by the action of di tert butyl dicarbonate (Boc 2 O) in dioxane (Scheme 1).…”

“…Physicochemical and spectroscopic characteristics of Boc 4 aminostyrene 1 agree with those given in the literature. 16 Poly[(styrene) co (N tert butoxycarbonyl 4 aminostyrene)] (2). Styrene (1.248 g, 0.012 mol), Boc 4 aminostyrene 1 (2.628 g, 0.012 mol), and a solution of AlBN (0.039 g, 1 wt.%) in DMA (5 mL) were placed into a 15 mL tube.…”

Characterization of surface NH+3Cl− groups on poly(styrene-co-Boc-aminostyrene) microspheres obtained by controlled acidic treatment

“…Di-tert-butyl dicarbonate (Boc) 2 (Aldrich) was used in the preparation of the Boc-p-aminostyrene monomer (Boc-AMST) as previously reported [11]. In the dispersion copolymerization reactions, 1.8 and 34.6 mM concentration of Boc-AMST and ST, respectively, were used for the BOC7 run, while 8.7 and 20.2 mM of Boc-AMST and ST, respectively, were used for the BOC30 run.…”

“…In our previous work [11], the synthesis of a new aminated monomer, Boc-p-aminostyrene (Boc-AMST), was described. Boc-AMST is appropriate for copolymerization with styrene (ST), achieving high conversion [12].…”

Synthesis and characterization of secondary‐amine‐functional microparticles

“…In their study, the synthesis of tertiary-amine-functional and acid-and hydroxylfunctional microparticles was carried out with polystyrene latex particles as the seed and a mixture of styrene and acrylic comonomers comprising a functional monomer with the desired functional group. In another study, 12 butoxycarbonyl blocked p-amino styrene was used during the synthesis. Aminated microparticles were obtained by the simple removal of the Boc-protective group under acidic conditions followed by neutralization; this produced p-amino styrene/styrene copolymers.…”