Advances in Tribology

Review Article

Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

Table 2

Molecular structures and melting points of ionic liquid lubricants R_F–CO–Y–R.


No.	R_F	Y	R	mp/°C	Remark

1	C₇F₁₅	O	C₁₈H₃₇	29
2	C₇F₁₅	O	C₁₈H₃₁	<20
3	C₇F₁₅	NH	C₁₈H₃₇	91
4	C₇F₁₅	NH	C₁₈H₃₁	48
5	C₇F₁₅	O⁻H₃N⁺	C₁₈H₃₇	55
6	C₇F₁₅	O⁻H₃N⁺	C₁₈H₃₁	<20
7	C₉F₁₉	O⁻H₃N⁺	C₁₂H₂₅	61
8	C₉F₁₉	O⁻H₃N⁺	C₁₄H₂₉	65
9	C₉F₁₉	O⁻H₃N⁺	C₁₈H₃₇	71
10	C₉F₁₉	O⁻H₃N⁺	C₂₄H₄₉	85
11	C₉F₁₉	O⁻H₃N⁺	C₁₈H₃₅	26
12	C₉F₁₉	O⁻H₃N⁺	C₁₈H₃₁	<20
13	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₄H₉	<30	Z-lubricant
14	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₆H₁₃	<30	Z-lubricant
15	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₈H₁₇	<30	Z-lubricant
16	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₀H₂₁	<30	Z-lubricant
17	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₂H₂₅	<30	Z-lubricant
18	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₄H₂₉	<30	Z-lubricant
19	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₆H₃₃	< 30	Z-lubricant
20	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₈H₃₇	38–40	Z-lubricant
21	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₂₀H₄₁	58–61	Z-lubricant
22	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₈H₃₅	<30	Z-lubricant
23	–CF₂O––(–CF₂O–	O⁻H₃N⁺	C₁₈H₃₁	<30	Z-lubricant
24	–CF₂O––(–CF₂O–	O⁻H₂N⁺(CH₃)	C₁₈H₃₇	79–82	Z-lubricant
25	–CF₂O––(–CF₂O–	O⁻HN⁺(CH₃)₂	C₁₈H₃₇	55–57	Z-lubricant
26	–CF₂O––(–CF₂O–	O⁻H₂N⁺(C₁₈H₃₇)	C₁₈H₃₇	51–55	Z-lubricant
27	–CF₂O––(–CF₂O–	O⁻H₂N⁺(C₆H₅)	C₁₈H₃₇	31–33	Z-lubricant
28	F––CF₂CF₂–	O⁻H₃N⁺	C₄H₉	<30	D-lubricant
29	F––CF₂CF₂–	O⁻H₃N⁺	C₆H₁₃	<30	D-lubricant
30	F––CF₂CF₂–	O⁻H₃N⁺	C₈H₁₇	<30	D-lubricant
31	F––CF₂CF₂–	O⁻H₃N⁺	C₁₀H₂₁	<30	D-lubricant
32	F––CF₂CF₂–	O⁻H₃N⁺	C₁₂H₂₅	<30	D-lubricant
33	F––CF₂CF₂–	O⁻H₃N⁺	C₁₄H₂₉	<30	D-lubricant
34	F––CF₂CF₂–	O⁻H₃N⁺	C₁₆H₃₃	<30	D-lubricant
35	F––CF₂CF₂–	O⁻H₃N⁺	C₁₈H₃₇	<30	D-lubricant
36	F––CF₂–	O⁻H₃N⁺	C₁₈H₃₇	<30	K-lubricant
37	C₁₇H₃₅	O⁻H₃N⁺	C₁₈H₃₇	92
38	8-C₁₇H₃₃	O⁻H₃N⁺	C₁₈H₃₇	47
39	16-C₁₇H₃₃	O⁻H₃N⁺	C₁₈H₃₇	84
40	8, 11, 14-C₁₇H₂₉	O⁻H₃N⁺	C₁₈H₃₇	40