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@ARTICLE{Schneider:884740,
      author       = {Schneider, Kristina and Verkoyen, Patrick and Krappel,
                      Maximilian and Gardiner, Christina and Schweins, Ralf and
                      Frey, Holger and Sottmann, Thomas},
      title        = {{E}fficiency {B}oosting of {S}urfactants with
                      {P}oly(ethylene oxide)-{P}oly(alkyl glycidyl ether)s: {A}
                      {N}ew {C}lass of {A}mphiphilic {P}olymers},
      journal      = {Langmuir},
      volume       = {36},
      number       = {33},
      issn         = {1520-5827},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {FZJ-2020-03234},
      pages        = {9849 - 9866},
      year         = {2020},
      abstract     = {Twenty years ago, it was found that adding small amounts of
                      amphiphilic block copolymers like poly(ethylene
                      propylene)-co-poly(ethylene oxide) (PEP-b-PEO) to
                      microemul-sion systems strongly increases the efficiency of
                      medium-chain surfactants to solubilize water and oil.
                      Although being predestined to serve as a milestone in
                      microemulsion research, the effect has only scarcely found
                      its way into applications. In this work, we propose new
                      types of efficiency boosters, namely, poly(ethylene
                      oxide)-poly(alkyl glycidyl ether carbonate)s (PEO-b-PAlkGE)
                      and their “carbonated” poly(ethylene
                      oxide)-poly(carbonate alkyl glycidyl ether) analogs. Their
                      synthesis via anionic ring-opening polymerization (AROP)
                      from commercially available long-chain alkyl glycidyl ethers
                      (AlkGE) and monomethoxypoly(ethylene glycol)s as
                      macroinitiators can be performed at low cost and on a large
                      scale. We demonstrate that these new PEO-b-PAlkGE copolymers
                      with dodecyl and hexadecyl side chains in the nonpolar block
                      strongly increase the efficiency of both pure and
                      technical-grade n-alkyl polyglycol ether surfactants to form
                      microemulsions containing pure n-alkanes or even
                      technical-grade waxes, a result that could be of interest
                      for industrial applications where reduced surfactant needs
                      would have significant economic and ecological
                      implications. For n-decane microemulsions, the boosting
                      effect of PEO-b-PAlkGE and PEP-b-PEO polymers can be scaled
                      on top of each other, when plotting the efficiency
                      semilogarithmically versus the polymeric coverage of the
                      amphiphilic film. Interestingly, a somewhat different
                      scaling behavior was observed for n-octacosane
                      microemulsions at elevated temperatures, suggesting that the
                      polymers show less self-avoidance and rather behave as
                      almost ideal chains. A similar trend was found for the
                      increase of the bending rigidity κ upon polymeric coverage
                      of the amphiphilic film, which was obtained from the
                      analysis of small-angle neutron scattering (SANS)
                      measurements.},
      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          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:32689803},
      UT           = {WOS:000566338500022},
      doi          = {10.1021/acs.langmuir.0c01491},
      url          = {https://juser.fz-juelich.de/record/884740},
}