Temperature dependences of the dynamic viscoelastic properties of wood and acetylated wood swollen by water or organic liquids

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Properties of the used liquids and relative swelling ratios of the wood swollen by those liquids

	Liquids	Structural formula	Molar volumes (cm³/mol)	P.A.P.Δv^a (cm⁻¹)	H-bonding properties	C.E.^d (cal/cm³)	Relative swelling^e (%)
Methanol	MeOH	CH₃OH	40.7	187	AD^b	204	89.7
Ethanol	EtOH	C₂H₅OH	58.5	187	AD	166	82.5
2-Propanol	PrOH	(CH₃)₂CHOH	75.0	187	AD	144	73.6
1-Butanol	BuOH	CH₃CH₂CH₂CH₂OH	91.8	187	AD	128	63.0
Acetone	Act	CH₃COCH₃	74.0	64	A^c	96	68.0
Methyl ethyl ketone	MEK	CH₃CH₂COCH₃	90.2	57	A	86	56.0
Toluene	Tol	C₆H₅CH₃	106.4	45	A	79	0.9
Ethylene glycol	EG	HOCH₂CH₂OH	55.8	206	AD	266	111.2
Formamide	FA	HCONH₂	39.7		AD	317	116.8
Dimethyl sulfoxide	DMSO	(CH₃)₂SO	70.9	141	A	166	133.0
Water	Water	H₂O	18.0	390	AD	552	100.0

^aProton accepting powers : the data are cited from a table of Kagiya et al. [18], Crowley and others [19] and Ishimaru and others [20].
^bLiquid having both proton-accepting and donating properties for hydrogen bonding
^cLiquid having only proton-accepting properties for hydrogen bonding
^dCohesion energy : the data are calculated from the solubility parameter values in a table by Hansen [21]
^eRelative swelling compared with that in water : the data are cited from a table of Sakai and others [22] and Ishimaru and others [23]