Effects of surface area and pore size upon liquid chromatographic fractionations of polystyrene oligomers using ethylphenyl derivatized silicas

Technical Report · Wed Jun 01 00:00:00 EDT 1983

OSTI ID:6098297

Howard, W A; Hsu, T B; Rogers, L B

Oligomers of 800 and 2200 MW polystyrene have been separated on ethylphenyl derivatized silicas. This study examined the effects of surface area, pore size, sample loading and functionality of the silica surface upon oligomer separations. Particle size, endcapping and polymerization of the silane were held constant. Silicas having small pores and high surface area yielded the best separation. Also, ethylphenyl was better than n-octyl for separating 800 MW polystyrene oligomers. 8 figures.

• Research Organization: Georgia Univ., Athens (USA). Dept. of Chemistry
• DOE Contract Number: AS09-76ER00854
• OSTI ID: 6098297
• Report Number(s): DOE/ER/00854-40; ON: DE83014632
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
POLYSTYRENE
FRACTIONATION
CHROMATOGRAPHY
PARTICLE SIZE
POROSITY
SILICA
SURFACE AREA
CHALCOGENIDES
MATERIALS
MINERALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYVINYLS
SEPARATION PROCESSES
SILICON COMPOUNDS
SILICON OXIDES
SIZE
SURFACE PROPERTIES
SYNTHETIC MATERIALS
400105* - Separation Procedures