Surface enrichment in an isotopic polymer blend

Journal Article · Mon Jan 16 00:00:00 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), Vol. 62:3
• Country of Publication: United States
• Language: English

Related Subjects

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