% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Dyakonova:843895,
      author       = {Dyakonova, Margarita A. and Gotzamanis, George and Niebuur,
                      Bart-Jan and Vishnevetskaya, Natalya S. and Raftopoulos,
                      Konstantinos N. and Di, Zhenyu and Filippov, Sergey K. and
                      Tsitsilianis, Constantinos and Papadakis, Christine M.},
      title        = {p{H} {R}esponsiveness of hydrogels formed by telechelic
                      polyampholytes},
      journal      = {Soft matter},
      volume       = {13},
      number       = {19},
      issn         = {1744-6848},
      address      = {London},
      publisher    = {Royal Soc. of Chemistry},
      reportid     = {FZJ-2018-01422},
      pages        = {3568 - 3579},
      year         = {2017},
      abstract     = {We investigate the influence of pH on the rheological and
                      structural properties of hydrogels formed by hydrophobic
                      association of the sticky ends of the triblock terpolymer
                      poly(methyl methacrylate)-b-poly(2-(diethylamino)ethyl
                      methacrylate-co-methacrylic acid)-b-poly(methyl
                      methacrylate) (PMMA-b-P(DEA-co-MAA)-b-PMMA). The middle
                      block is a weak polyampholyte having a pH dependent charge
                      density and sign, which enables tuning of the rheological
                      and structural properties by pH variation. Small-angle
                      neutron scattering (SANS) studies of solutions in D2O at
                      0.05 $wt\%$ and pH 3.0 reveal clusters of interconnected
                      spherical micelles having PMMA cores, stabilized by
                      repulsive ionic interactions in the middle polyampholyte
                      block. With increasing pH, the degree of ionization of the
                      DEA units decreases, whereas the one of the MAA units
                      increases, resulting in a complete loss of the correlation
                      between these micelles. At a concentration of 3 $wt\%$ at
                      low pH values, the system forms a gel with charged fuzzy
                      spheres from PMMA interacting via a screened Coulomb
                      potential. With increasing pH, the gel disintegrates due to
                      the decrease in the effective charge on the micelles. At
                      both concentrations, the hydrophobic aggregation of micelles
                      is observed near the isoelectric point. At pH 3.0–7.4, the
                      autocorrelation functions measured by rotational dynamic
                      light scattering at 3 $wt\%$ exhibit a decay steeper than
                      single exponential, which confirms that the gels are frozen,
                      presumably due to the glassy PMMA cores and hydrophobic
                      interpolyelectrolyte complexes. At pH 11, the diffusion of
                      single micelles is observed in addition to the frozen
                      dynamics.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:28443918},
      UT           = {WOS:000401620300012},
      doi          = {10.1039/C7SM00315C},
      url          = {https://juser.fz-juelich.de/record/843895},
}