Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Tobias Kerle"'
Publikováno v:
Langmuir. 18:10146-10154
A detailed investigation of a new process of dewetting which takes place at the liquid−liquid interface of partially miscible liquids is reported. We use nuclear reaction analysis and real-time video monitoring to examine in detail the formation of
Publikováno v:
Macromolecules, 35(16), 6255-6262. AMER CHEMICAL SOC
External electric fields were used to amplify interfacial fluctuations in the air/polymer/polymer system where one polymer dewets the other. Two different hydrodynamic regimes were found as a function of electric field strength. If heterogeneous nucl
Publikováno v:
Macromolecules. 34:3484-3492
In general, the relaxation of polymers from a nonequilibrium state will occur only if the polymer is above the bulk glass temperature. To examine the influence of a free surface on the mobility of polymer chains, the free surface of thick, artificial
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 38:831-837
Using nuclear reaction analysis composition-depth profiling, we investigate the influence of symmetric/asymmetric confining walls on the equilibrium configuration of thin films of phase-separated polymer blends. Depth profiles of samples annealed und
Publikováno v:
Macromolecules. 33:1298-1305
We compare segmental interaction parameters χAB in binary polyolefin mixtures extracted from a fit to the binodalas deduced from composition−depth profiling of thin filmswith values extracted from small-angle neutron scattering (SANS), on the self
Publikováno v:
The European Physical Journal B. 7:401-410
The capillary broadening of a 2-phase interface is investigated both experimentally and theoretically. When a binary mixture in a thin film with thickness D segregates into two coexisting phases the interface between the two phases may form parallel
Publikováno v:
Europhysics Letters (EPL). 44:484-490
The evolution of pre-rupture undulations at the liquid-air interface of thin non-wetting liquid films spread on a solid substrate was monitored in real time by non-perturbative interference microscopy. The spatial distribution of the incipient undula
Publikováno v:
Macromolecules. 31:417-421
The concentration profiles of high molecular weight, isotopic polystyrene blends in the near-surface region were directly measured using real-space composition-depth profiling based on nuclear reaction analysis. The measured profiles are in good agre
Publikováno v:
Macromolecules. 31:422-429
Wetting properties of thin films of a polymer melt on top of a network formed by irradiation cross-linking of an identical melt were studied. The permeability of the network and its wettability as a function of the extent of cross-linking were charac
Publikováno v:
Acta Polymerica. 48:548-552
Direct depth profiling techniques to date have largely lacked the necessary depth resolution to investigate interfacial phenomena of the order of the bulk correlation length (5-10 nm for a wide range of systems). Here we investigate the optimal spati