Small-angle X-ray scattering (SAXS) studies of sulfonated polystyrene ionomers. 1. Anomalous SAXS

Journal Article · Sun Feb 28 23:00:00 EST 1993 · Macromolecules; (United States)

DOI:https://doi.org/10.1021/ma00057a018· OSTI ID:6513431

Chu, B; Wu, D Q ^[1]; Lundberg, R D ^[2]; MacKnight, W J ^[3]

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1. State Univ. of New York, Stony Brook (United States)
2. Exxon Research and Engineering Co., Annandale, NJ (United States)
3. Univ. of Massachusetts, Amherst (United States)

Morphological studies of sulfonated polystyrenes by using small-angle X-ray scattering (SAXS) and anomalous SAXS (ASAXS) are presented. ASAXS was used to study a model ionomer system: zinc salts of sulfonated polystyrene (SPS). The results showed the presence of local clustering, as well as long-range inhomogeneities of ions. The observed morphology could be attributed only to the metal ionic structures, as can be proven by means of ASAXS. However, with the SAXS patterns by SPS being much stronger than those of polystyrene or SPS in acid form, the excess SAXS patterns of the metal ions can be measured with greater precision by SAXS than by ASAXS.

• OSTI ID: 6513431
• Journal Information: Macromolecules; (United States), Journal Name: Macromolecules; (United States) Vol. 26:5; ISSN MAMOBX; ISSN 0024-9297
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MATERIALS
MOLECULAR STRUCTURE
MORPHOLOGY
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
RADIATIONS
SALTS
SCATTERING
SMALL ANGLE SCATTERING
SULFONATES
SYNTHETIC MATERIALS
X RADIATION
ZINC COMPOUNDS