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Table 4 Comparison of inclusion constants for triblock copolymers and other sorbent materials

From: Biorenewable triblock copolymers consisting of l-lactide and ε-caprolactone for removing organic pollutants from water: a lifecycle neutral solution

Adsorbent material

Guest compounds

Ki (M−1)

Adsorption capacity (mol PAH/g polymer)

1l

Pyrene, fluoranthene, phenanthrene

4.4 × 105–7.4 × 105

5.4 × 10−8–5.8 × 10−7

Alkylated β-cyclodextrin

Phenanthrene

1.2 × 106–1.8 × 106

2.4 × 10−5–2.5 × 10−5

Alkylated poly(ethyleneimine)

Pyrene, fluoranthene, phenanthrene

1.0 × 107–2.0 × 108

5.4 × 10−5–1.0 × 10−4

Alkylated poly-(propyleneimine) dendrimers

Pyrene, fluoranthene, phenanthrene

1.5 × 106–1.0 × 108

3.0 × 10−5–3.8 × 10−4

Benzyl amine dendrimers

Pyrene

6.1 × 109–1.6 × 1011

6.3 × 10−8–3.1 × 10−7