The atomic percentage of elements from the XPS survey scan.

Samples	C (%)	O (%)	P (%)	F (%)	Cr (%)	Fe (%)	F/P	F/C	C/P	P/C
SS	35.90	47.89	—	—	12.91	3.30	—	—	—
Poly(HDFDMA)	45.92	35.26	—	8.68	8.79	1.35	—	0.18	—
Poly(PMM)	41.06	45.93	3.86	—	6.76	2.39	—	—	10.64	0.094
[3 : 1]	39.48	38.00	1.53	10.65	9.02	1.32	6.96	0.27	25.80	0.04
[1 : 1]	42.52	20.92	2.14	30.98	2.34	1.1	14.47	0.74	19.86	0.05
[1 : 2]	45.53	26.57	3.67	20.13	2.54	1.56	5.48	0.44	12.40	0.08
[1 : 3]	44.36	28.00	3.32	19.3	3.34	1.68	5.81	0.44	13.36	0.074
[1 : 4]	46.49	31.36	3.08	14.51	2.85	1.71	4.71	0.32	15.09	0.098