Poly(vinyl butyral)

POLYMER CLASS	Polyvinylether
COMMON NAMES	Poly(vinyl formal), Vinylec^®, Formvar^®
STRUCTURE BASED NAME	Poly[(1,3-dioxane-4,6-diyl)methylene]
ACRONYMS	PVF
CAS #	63450-15-7
CurlySMILES	C1{-}CC(OCO1)C{n+}

CAS #	9002-89-5, 50-00-0
COMMON NAMES	Poly(vinylalcohol) + Formaldehyde (- H₂O)
SMILES	C{-}C(O){n+}.O=C
Std. InChI	N/A
Std. InChIKey	N/A
STRUCTURE

PROPERTY	UNIT	VALUE / RANGE	PREFERRED
Molecular Weight of Repeat unit	g mol^-1	99.12
Van-der-Waals Volume V_vW	mL mol^-1
Molar Volume V_m	mL mol^-1	79.1 - 80.6	79.8
Density ρ	g mL^-1	1.23 - 1.25	1.24
Solubility Parameter δ	MPa^1/2
Molar Cohesive Energy E_coh	J mol^-1
Glass Transition Temperature T_g	K	325¹ - 381	325
Molar Heat Capacity C_p	J (mol K)^-1
Entanglement Molecular Weight M_e	g mol^-1
Index of Refraction n	none	1.48 - 1.50	1.49

¹High molecular weight and high acetalization (90%)