Synthesis by self-condensing AGET ATRP and solution properties of arborescent poly(sodium 2-acrylamido-2-methyl-N-propane sulfonate)

Effect of Molecular Architecture on the Polyelectrolyte Structuring under Confinement

“…In this study, the chain architecture (degree of branching) was systematically changed for a better understanding of its effects in a confined geometry. Four P(AMPS) derivatives with different degrees of branching, namely from the linear to the most densely branched: 67 distance. 31,73 However, it was found to be valid in nanoparticle systems under confinement as well.…”

“…Randomly branched poly(sodium 2-acrylamido-2-methylpropanesulfonates) (NaPAMPS) were synthesized via selfcondensing AGET ATRP of sodium 2-acrylamido-2-methylpropanesulfonate (NaAMPS) in the presence of 2-(2-bromopropionyloxy)-ethyl acrylate (BPEA) as a branching monomer-initiator (inimer), as the details are given somewhere else. 67 The average fractal dimension is 1.43. Linear LPAMPS was synthesized by homopolymerization of NaAMPS under the same conditions.…”

“…The samples have a fractal dimension of 1.43, so the chain architecture is between rod-like and arborescent 67. The corresponding charge fractions were calculated as LPAMPS = 100%, BPAMPS-6 = 94%, BPAMPS-17 = 83%, and BPAMPS-24 = 76%.…”

Polymerisation of 2-acrylamido-2-methylpropane sulfonic acid sodium salt (NaAMPS) and acryloyl phosphatidylcholine (APC) via aqueous Cu(0)-mediated radical polymerisation

“…For example, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and its sodium salt (NaAMPS) have been employed in atom transfer radical polymerisation (ATRP) and reversible addition fragmentation chain transfer polymerisation (RAFT). [11][12][13][14][15][16] Likewise, both ATRP and RAFT have been exploited for the controlled polymerisation of betaine monomers. [17][18][19][20][21][22] The resulting polymers have found use in protein/peptide conjugation 23 and surface modification technologies 24,25 as well as in the fabrication of polymer nanoparticles [26][27][28][29][30] decorated in, and possessing the desirable properties of polyzwitterionic constituents.…”

Synthesis of densely grafted copolymers with tert-butyl methacrylate/2-(dimethylamino ethyl) methacrylate side chains as precursors for brush polyelectrolytes and polyampholytes

“…zwitterionic or polyampholyte chains, is still a challenging task [38]. In order to achieve adequate control of polymerization, the ionic/ionizable groups inherent to stimuli-responsive macromolecules must be used in a protected form.…”