Surface enrichment in an isotopic polymer blend

Journal Article · Sun Jan 15 23:00:00 EST 1989 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.62.280· OSTI ID:6551108

Jones, R A.L.; Kramer, E J; Rafailovich, M H; Sokolov, J; Schwarz, S A

Forward recoil spectrometry reveals that the surface of a blend of deuterated polystyrene (d-PS) and protonated polystyrene (PS) is enriched with d-PS relative to the bulk; the surface excess of d-PS increases almost linearly with the bulk volume fraction phi of d-PS at 184 /sup 0/C. The results may be interpreted quantitatively with mean-field theory, and yield a form of the bare surface energy of the blend consistent with the surface enrichment being driven by a surface energy difference between d-PS and hydrogenated polystyrene (h-PS) of isotopic origin.

• Research Organization: Department of Materials Science and Engineering, and the Materials Science Center, Cornell University, Ithaca, New York 14853
• OSTI ID: 6551108
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 62:3; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
BARYONS
CHEMICAL REACTIONS
DEUTERATION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
ION EXCHANGE
ISOTOPIC EXCHANGE
MATERIALS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PROTONS
SURFACE PROPERTIES
SYNTHETIC MATERIALS