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

Table 3 ATRP of styrene at 100 °C

Time (h)	M_n × 10³(g/mol)	PDI	% Weight loss^a	Grafting density^b	Initiator efficiency
2	18	2.96	64	0.48	0.18
4	32	2.37	73	0.41	0.16
6	41	2.54	82	0.55	0.21
8	52	2.47	91	1.01	0.39
10	64	1.84	94	1.26	0.49