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Table 6 ATRP of methyl methacrylate from MNs—comparison of grafting density for various anchoring chemistry

From: Synthesis of Polymer Grafted Magnetite Nanoparticle with the Highest Grafting Density via Controlled Radical Polymerization

Anchoring chemistry

Grafting density after immobilizing initiator (molecules/nm2)

Grafting density after polymerization of MMA (chain/nm2)

Average initiator efficiency after polymerization

Phosphonic acid

2.6

1.0

0.38

Choro silane

1.5

0.1

0.06

Triethoxy silane

5.6

0.1

0.01

Carboxylic acid

8.6

0.1

0.01

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