Melnichenko
Position: Instrument Scientist
Group: Structure and Dynamics of Soft Matter
Facility: High Flux Isotope ReactorEmail: melnichenkoy@ornl.gov
Phone: (865) 576-7746
1995-present
Senior Research Staff Member, Research Staff Member, Postdoctoral associate, Neutron Scattering Directorate, ORNL
1993-1995
Visiting Researcher, Max Planck Institute for Polymer Research, Germany
1985-1993
Senior Research Scientist, Research Scientist, Inst. for Macromolecular Chemistry, Ukrainian Academy of Science, Kiev, Ukraine
1976-1985
Research Scientist, PhD Student, Kiev State University, Ukraine
Education
Doctor of. Science Physics and Mathematics, Institute for Macromol. Chemistry, Academy of
Sciences, USSR (1992).
PhD (Cand. of Sc.) Physics, Dept. of Physics, Kiev State University (1985).
MS Physics, Dept. of Physics, Kiev State University (1976).
Research
Small-angle neutron scattering investigations of the structure, thermodynamic, and dynamic properties of polymer melts and blends; solutions of polymers in organic and supercritical solvents at ambient and elevated pressures; homopolymers, block copolymers, and block copolymer micelles in supercritical fluids; polyelectrolytes, structural transformations in biopolymers; fullerenes and fullerene derivatives; the influence of small pores on the structure and dynamics of confined fluids. Complementary techniques: X-ray scattering, quasielastic and inelastic neutron scattering, dynamic and static light scattering.
Selected Publications
From more than 150 peer reviewed articles:
Y. B. Melnichenko and G. D. Wignall, Small-angle neutron scattering in materials science: Recent practical applications, J. Appl. Phys. Reviews 102, 021101 (2007).
G. D. Wignall and Y. B. Melnichenko, Recent applications of small-angle scattering in strongly interacting soft matter, Rep. Progr. Phys. 68, 1761 (2005).
M. M. Crawford, R. J. Smalley, G. Cohen, B. Hogan, B. Wood, S. K. Kumar, Y. B. Melnichenko, L. He, W. Guise and B. Hammouda, Chain conformation in polymer nanocomposites with uniformly dispersed nanoparticles, Phys. Rev. Lett, 110, 196001 (2013).
L. He, G. Cheng, and Y. B. Melnichenko, Partial Collapse and Reswelling of a Polymer in the Critical Demixing Region of Good Solvents, Phys. Rev. Lett. 109, 067801 (2012).
G. Cheng, W.W. Graessley and Y. B. Melnichenko, Polymer solutions in good solvents: Crossover from semidilute to concentrated solutions, Phys. Rev. Lett. 102, 157801 (2009).
Y. B. Melnichenko, M. A. Anisimov, A. Povodyrev, G. D. Wignall, J. S. Sengers and W. A. Van Hook, Sharp Crossover of the Susceptibility in Polymer Solutions, Phys. Rev. Lett.,79, 5266 (1997).
Y. B. Melnichenko and G. D. Wignall, Dimensions of Polymer Chains in Critical Semidilute Solutions, Phys. Rev. Lett., 78, 686 (1997).
J. Schueller, Y. B. Melnichenko*, R. Richert, and E. W. Fischer, Dielectric Studies of Glass Transition in Pores, Phys. Rev. Lett., 73, 2224 (1994).
Y. B. Melnichenko, N. V. Lavrik, E. Popov, J. Bahadur, L. He, I. I. Kravchenko, G. Smith, V. Pipich, and N. K. Szekely, Cavitation on deterministically nanostructured surfaces in contact with an aqueous phase: A small-angle neutron scattering study, Langmuir 30, 9985 – 9990 (2014)
Y. B. Melnichenko and S. Ciccariello, Small angle neutron scattering study of deuterated propane adsorption in silica aerogel J. Chem. Phys. C 116, 24661 (2012).
Awards, Honors and Memberships
2013 Dalway J. Swaine Award from the Society for Organic Chemistry
Fellow, American Physical Society (2005), for “Significant contribution to the fundamental science underlying universal aspects of macromolecules in polymer solutions, supercritical mixtures and polymer blends”
ORNL Significant Achievement Award (2006), for "Design and installation of the two new small-angle neutron scattering instruments at HFIR"
Fellow, Humboldt Foundation (1993), Germany
Max Planck Society Fellowship, (1994), Germany
Member, Americal Physical Society
Member, Neurtron Scattering Society of America
