Poly(dimethylsiloxane), hydroxy terminated

ALDRICH/481939 - viscosity ~25 cSt

Synonym: PDMS

CAS Number: 70131-67-8
MDL Number: MFCD01325010
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-481939-100ML	100 mL	$123.00 1/EA		Add To Favorites
45-481939-500ML	500 mL	$448.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

bp	182 °C
density	0.95 g/mL at 25 °C
InChI	1S/C2H8O2Si/c1-5(2,3)4/h3-4H,1-2H3
InChI key	XCLIHDJZGPCUBT-UHFFFAOYSA-N
mol wt	average M_n ~550
Quality Level	100
refractive index	n20/D 1.405
SMILES string	C[Si](C)(O)O
viscosity	~25 cSt

Application:	PDMS can be used as a precursor in the synthesis of poly(dimethylsiloxane-urethane) elastomers with improved mechanical and thermal properties. PDMS is a material of choice for ophthalmic applications due to its high mechanical strength, transparency, and oxygen permeability. It can be used as a prepolymer to prepare a glucose permeable interpenetrating network of PDMS and poly (N-isopropyl acrylamide (PNIPAAM). These networks can be used in ophthalmic applications. PDMS can also be used to synthesize fire and heat-resistant polyurethane-PDMS hybrids. The addition of PDMS provides low flammability and thermal stabilization to polyurethane under pyrolytic conditions. PDMS is used as an additive to prepare TEOS-based stone protective hybrid crack-free xerogels. The addition of PDMS accelerates the gelling process and helps to achieve effective stone protection.
General description:	Polydimethylsiloxane(PDMS) is a silicon-basedorganic polymer that is nontoxic, optically clear, inert, and inflammablematerial. It is widely used in heat-resistant lubricants, fire retardants,medical devices, and cosmetics. Polydimethylsiloxane is hydrophobic,cytocompatible, and viscoelastic which can be used to prepare water-repellentcoatings in the textile industry.
Packaging:	100, 500 mL in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

bp	182 °C
Density	0.95 g/mL at 25 °C
Refractive Index	n20/D 1.405
UNSPSC	12162002

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