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000014022 1001_ $$0P:(DE-Juel1)VDB4342$$aRadulescu, A.$$b0$$uFZJ
000014022 245__ $$aMicrostructure and morphology of self-assembling multi-block poly(ethylene-1-butebe) -n copolymers in solution studied by wide-Q small-angle neutron scattering and microscopy
000014022 260__ $$aBognor Regis [u.a.]$$bWiley$$c2011
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000014022 440_0 $$08821$$aJournal of Polymer Science B - Polymer Physics$$v49$$x0887-6266$$y2
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000014022 520__ $$aMultiblock ethylene-1-butene copolymers (PEB-n) with graded ethylene content (where n is the number of ethyl branches per 100 backbone carbons) represent efficient cold filter plugging point (CFPP) depressants for crude oils and middle distillates. The aggregation behavior and the interaction with wax molecules of a tetrablock PEB-2.6/PEB-6.0/PEB-10.9/ PEB-13.2 and triblock PEB-6.5/PEB-8.9/PEB-10.1 copolymers in decane solutions were investigated over a wide temperature range by combining different small-angle neutron scattering techniques and optical microscopy. The experimental results revealed in the decrease of temperature formation and evolution of multisized structural levels showing a hierarchical organization on the length scale from 1 nm up to 10 mu m. One-dimensional polymer aggregates arising as initial structures associate and branch that lead to the occurrence of complex macroaggregates with diffusive interfaces and sizes of several microns. The one-dimensional copolymer structure shows longitudinal density modulation and micellar-like substructures in neat polymer solutions. When wax is added, this structure becomes more homogeneous in decrease of temperature as a consequence of the cocrystallization of wax and copolymer. The wax crystallization in board-like objects of much smaller size than required by the CFPP criterion of oil and refinery industry (filter mesh size of 45 mu m) is templated and controlled by the assembling features of the crystalline amorphous PEB-n multiblock copolymers. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 49: 144-158, 2011
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000014022 65320 $$2Author$$aadditives
000014022 65320 $$2Author$$aneutron scattering
000014022 65320 $$2Author$$apolybutadiene
000014022 65320 $$2Author$$aself-assembly
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000014022 65017 $$0V:(DE-MLZ)GC-1602-2016$$2V:(DE-HGF)$$aPolymers, Soft Nano Particles and  Proteins$$x1
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000014022 693__ $$0EXP:(DE-MLZ)KWS2-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)KWS2-20140101$$6EXP:(DE-MLZ)NL3ao-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz$$eKWS-2: Small angle scattering diffractometer$$fNL3ao$$x0
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000014022 7001_ $$0P:(DE-Juel1)130962$$aSchwahn, D.$$b1$$uFZJ
000014022 7001_ $$0P:(DE-Juel1)130986$$aStellbrink, J.$$b2$$uFZJ
000014022 7001_ $$0P:(DE-Juel1)VDB96976$$aMonkenbusch, m.$$b3$$uFZJ
000014022 7001_ $$0P:(DE-HGF)0$$aFetters, L.J.$$b4
000014022 7001_ $$0P:(DE-Juel1)130917$$aRichter, D.$$b5$$uFZJ
000014022 773__ $$0PERI:(DE-600)1473448-5$$a10.1002/polb.22158$$gVol. 49, p. 144 - 158$$p144 - 158$$q49<144 - 158$$tJournal of polymer science / B$$v49$$x0887-6266$$y2011
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