The role of multifunctionalized amine structure and reaction conditions on the transformations of crosslinked copoly(styrene-p-nitrophenylacrylate)

Reactivity of polyacrylamide-supported polyhalide anions: effect of macromolecular structure and cross-linking

“…Recently, similar observations on the chemical transformations of cross-linked co-polystyrene-p-nitrophenylacrylate were reported by Zupan et al [22]. A similar change was also observed in the quaternization and polyhalide formation steps.…”

“…Thus, in the oxidation of benzoin to benzil using N,N'-MBA cross-linked poly(N-haloacrylamide) resins, the reactivities of the 5% and 10% cross-linked reagents were higher than that of the linear one. With the tetraethylene glycol diacrylate (TEGDA) cross-linked polyacrylamidebased reagent, the reactivity frst decreased for the 5% resin and then increased up to 15% and decreased progressively on further increase in cross-link density [22].…”

Synthesis of Block Copoly(styrene-b-p-nitrophenyl methacrylate) and Its Derivatives by Atom Transfer Radical Polymerization

“…PolyNPMA has been synthesized by normal radical polymerization. After being hydrolyzed or substituted by amino group, the corresponding derivatives have been found important applications in biological and medical fields. − So, it should be interesting to synthesize well-defined diblock copolymers from p -nitrophenyl (meth)acrylate and styrene. It has been proven that ATRP could be used to synthesize polymers with narrow molecular weight distribution (MWD), well-defined block copolymers, , and star polymers. , In this paper, we reported the synthesis of well-defined block copoly(styrene- b - p -nitrophenyl methacrylate) (PSt- b -PNPMA) by ATRP and its derivatives, copoly(styrene- b -methacrylic acid) (PSt- b -PMAA) and copoly(styrene- b - N -butyl methacrylamide) (PSt- b -PBMAD), by hydrolysis and amino substitution respectively, as described in Scheme .…”

Aryl acrylate porous functional polymer supports from water‐in‐oil‐in‐water multiple emulsions

“…The reason for including a commercially unavailable NPA in the polymers obtained from multiple emulsions was to obtain a polymer chain with a moiety that can be easily transformed with nucleophiles. NPA has already been used in our laboratories previously and has proven to be fairly easily to functionalise with amines, hydrazines, amino acids, amino thiols and amino alcohols 10, 11, 13. Organic synthesis has recently benefited from various insoluble polymers to which species for the removal of excessive reagents, substrates or catalysts from solutions were immobilised (the term ‘polymer‐assisted solution‐phase chemistry’ is usually used for the technique and the term ‘polymer‐supported scavengers’ for the polymers; for a review of polymer‐supported scavengers see Ley et al 19).…”

“…Alternative chemistry to chloromethylated styrene in the form of activated esters with good leaving groups was introduced into polymer supported chemistry some years ago 10. For instance, various functionalisations with amines were performed in order to acquire polymeric scavengers 11. Furthermore, 4‐nitrophenyl acrylate‐based beads were hydrolysed and transformed into an acid chloride serving as a precursor for further functionalisations 12, 13.…”