446084
Polyurethane diol solution
average Mn ~320, 88 wt. % in H2O
Synonym(s):
PU Diol Concentrate
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![Poly[4,4′-methylenebis(phenyl isocyanate)-alt-1,4-butanediol/di(propylene glycol)/polycaprolactone] pellets, MDI-polyester/polyether polyurethane.](/deepweb/assets/sigmaaldrich/product/structures/661/697/b23c24ce-15fb-4eae-a30f-786921d4c91e/640/b23c24ce-15fb-4eae-a30f-786921d4c91e.png)
form
liquid
mol wt
average Mn ~320
composition
urethane, 37%
concentration
88 wt. % in H2O
refractive index
n20/D 1.47
viscosity
8,000 cP(25 °C)(lit.)
acid number
0.6 mg KOH/g(dry basis)
hydroxyl value
350 mg KOH/g(dry basis)
solubility
H2O: soluble
density
1.14 g/mL at 25 °C
General description
Polyurethane diol solution (PUD) is a synthetic polymeric solution that is used as a modifier that is formed by condensation of isocyanates and polyalcohols. It modifies water soluble resins and emulsions which can be used in automotive coating applications.
Application
Modifier for water-soluble resins and emulsions in wood, appliance and auto coatings.
PUD may be used to control the cohesion of silver (Ag) inks which can be printed to form transparent conducting electrodes. These printed electrodes can be used in the fabrication of organic solar cells (OSCs). It may also be used as an electrolyte for dye sensitized solar cells (DSSCs).
Features and Benefits
Hydrolytically stable, improves flow and leveling and gives high film hardness.
Physical form
Dihydroxy-functional oligomer. Aliphatic urethane of proprietary composition
Other Notes
This product contains both primary and secondary hydroxyl functionality.
Storage Class
10 - Combustible liquids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Roll-offset printed transparent conducting electrode for organic solar cells.
Kim I, et al.
Thin Solid Films, 580(2), 21-28 (2015)
Isolation of a Pseudomonas aeruginosa strain from soil that can degrade polyurethane diol.
Mukherjee K, et al.
Biodegradation, 22(2), 377-388 (2011)
High efficient plastic solar cells fabricated with a high-throughput gravure printing method.
Kopola P, et al.
Solar Energy Materials and Solar Cells, 94(10), 1673-1680 (2010)
Effects of Sodium Iodide (NaI) on Electro-Conductivity with Polyurethane-Diol Organic Electrolyte for Dye-Sensitized Solar Cell (DSSC).
Solid State Phenomena, 268(10), 358-362 (2017)
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