Very High Resolution Without Artifacts
The PlusPore range has an increased pore volume that provides high resolution for specific applications. The high stability media permits the use of a wide range of organic solvents with accuracy and precision so that there is no distortion of the MW distribution shape. The PlusPore series of columns has been specifically designed for high resolution GPC, and represents the very latest in GPC column technology. These novel packing materials are based on the industry standard, highly cross linked polystyrene/divinylbenzene (PS/DVB), for the widest applicability and solvent compatibility. Each is made using a novel polymerization process to produce particles that exhibit a specific, controlled pore structure for optimum GPC performance. Typical applications include resins, condensation polymers, prepolymers, and oligomers. For high resolution polymer analysis, the PolyPore, ResiPore, MesoPore and OligoPore columns of the PlusPore product series exhibit a wide pore size distribution with near linear calibration curves covering an extended molecular weight range. These so-called “multipore” structures have increased pore volume compared to regular PS/DVB packing materials. This results in very high resolution GPC columns designed for specific application areas. The highly cross linked porous particles provide excellent chemical and physical stability and permit easy transfer across the full range of organic solvents with little change in the shape of the calibration curve or the efficiency of the columns. As this multipore column technology does not require the combination of individual pore size packing materials, the result is high accuracy and precision without any artifacts in the shape of the molecular weight distribution.
PlusPore calibration curves
Key PolyPore ResiPore MesoPore OligoPore
The PlusPore Range
• PolyPore for the routine analysis of general polymers • ResiPore for resins and condensation polymers • MesoPore for prepolymers and low MW resins • OligoPore for oligomeric samples
See Also • Polymer Calibration Standards, with highly characterized molecular weights, page 316
PlusPore Selection Guide
Column PolyPore™ ResiPore™ MesoPore™ OligoPore™ MW Range (g/mol) (PS) 200-2,000,000 200-400,000 up to 25,000 up to 4,500 Nominal Particle Size (μm) 5 3 3 6 Typical Efficiency (p/m) >60,000 >80,000 >80,000 >55,000 Recommended Calibrants EasiCal™ PS-1or EasiVial™ PS-H EasiCal PS-2 or EasiVial PS-M Polystyrene S-L-10 Kit, Polystyrene S-L2-10 Kit Frit Porosity (μm) 2 2 2 2
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