Swelling properties of aminomethyl polystyrene resin (loading 1.3 mmol g−1) in various solvents as reported by Lopez et al. The nature of the employed linker system was not disclosed13a.
Green: good swelling (>4.0 mL g−1). Orange: moderate swelling (2.0 to 4.0 mL g−1). Red: poor swelling (<2.0 mL g−1).
One gram of amino methyl resin was placed in a 10 mL graduated cylinder and the solvent was added to give a final volume of 10 mL. The suspension was gently stirred and allowed to settle for 3.0 h. The final swelling volume was measured in mL g−1.