				Barrier property
		Functional group (R)	Cracks	H₂O	O₂
	Uncoated	------------	--------	+	+ + +
I	TEOS	-OH	+ + +	+ +	+ + + + +
Ia	TEOS_LDHs	-OH	+ + +	+ + +	+ + + + +
II	TEOS_DEMDS	-CH₃	+ +	+ + + +	+ + + + + +
IIa	TEOS_DEDMS_LDHs	-CH₃	+ +	+ + + + +	+ + + + +
III	TEOS_APTES	-(CH₂)₃NH₂	+	+ + + +	+ + + + + +
IIIa	TEOS_APTES_LDHs	-(CH₂)₃NH₂	+	+ + + + + +	+ + + + +
IV	TEOS_OTES	-(C₇H₁₄)CH₃	+ + + +	+ + + +	+ +
IVa	TEOS_OTES_LDHs	-(C₇H₁₄)CH₃	+ + + +	+ + + + + +	+