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@ARTICLE{Dyakonova:888174,
      author       = {Dyakonova, Margarita A. and Li, Yanan and Besiri, Ioanna N.
                      and Di, Zhenyu and Grillo, Isabelle and Tsitsilianis,
                      Constantinos and Papadakis, Christine M.},
      title        = {{E}ffect of cosolvent on the rheological properties and
                      self-assembled structures from telechelic polyampholytes},
      journal      = {Colloid $\&$ polymer science},
      volume       = {299},
      issn         = {1435-1536},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {FZJ-2020-04737},
      pages        = {419–428},
      year         = {2021},
      abstract     = {A triblock copolymer with hydrophobic end blocks and a
                      polyampholytic middle block is investigated in a mixture of
                      water and acetone with a focus on the dependence of the
                      rheological properties and of the micellar structure and
                      correlation on the content of acetone. The polymer under
                      study is PMMA86-b-P(DEA190-co-MAA96)-b-PMMA86, where PMMA
                      stands for poly(methyl methacrylate) and P(DEA-co-MAA) for
                      poly(2-(diethylamino) ethyl methacrylate-co-methacrylic
                      acid). The pH is chosen at 3. Rheological measurements
                      reveal a transition from a viscoelastic solid over a
                      viscoelastic liquid to a freely flowing liquid upon addition
                      of 5 or 10 $wt\%$ of acetone to a 3 $wt\%$ aqueous polymer
                      solution, respectively. Using small-angle neutron scattering
                      on 0.5 $wt\%$ polymer solutions in water/acetone with the
                      content of the latter ranging between 0 and 30 $wt\%,$
                      significant structural changes are observed as well, such as
                      a decrease of the distance between the PMMA cross-links and
                      of the size of the network clusters upon increasing acetone
                      constant. These changes are attributed to the reduction of
                      the dielectric constant by the addition of the cosolvent
                      acetone, enhancing the flexibility of the middle blocks and
                      their tendency to backfolding, as well as to the decrease of
                      the solvent selectivity, inducing significant exchange rate
                      enhancement of the core-forming PMMA blocks.},
      cin          = {JCNS-FRM-II / JCNS-1 / MLZ},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-588b)4597118-3},
      pnm          = {899 - ohne Topic (POF4-899)},
      pid          = {G:(DE-HGF)POF4-899},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000578405100001},
      doi          = {10.1007/s00396-020-04758-6},
      url          = {https://juser.fz-juelich.de/record/888174},
}