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

Table 2 ATRP of benzyl methacrylate at ambient temperature

Time (h)	M_n × 10³(g/mol)	PDI	% Weight loss^a	Grafting density^b	Initiator efficiency
1	6.3	1.47	73	2.11	0.81
2	16.3	1.85	85	1.76	0.68
3	22	1.80	89	1.84	0.71
4	36.8	1.72	93	1.86	0.72
5	46.7	1.85	95	2.06	0.79