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430218

Sigma-Aldrich

Poly[4,4′-methylenebis(phenyl isocyanate)-alt-1,4-butanediol/di(propylene glycol)/polycaprolactone]

pellets, MDI-polyester/polyether polyurethane.

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About This Item

Numéro CAS:
68084-39-9
Numéro MDL:
MFCD00217691
Code UNSPSC :
12162002
Nomenclature NACRES :
NA.23

Résistance à l'abrasion

10 mg (Taber, H-22 wheel)

Forme

beads
pellets

Indice de fusion

4 g/10 min (190°C/8.7kg)

Dureté

84 (Shore A, ASTM D 2240)

Température de transition

Tg −40 °C (DSC)
softening point 85 °C (Vicat, ASTM D 1525)

Densité

1.18 g/mL at 25 °C (lit.)

Description générale

Poly[4,4′-methylenebis(phenyl isocyanate)-alt-1,4-butanediol/di(propylene glycol)/polycaprolactone] (PU/PCL) is a polyurethane solution that can be used as a shape memory polymer and a reinforcing unit for enhancing the mechanical and thermal properties of the base materials. It is biocompatible and finds usage in endothelial proliferations. PU/PCL contains polycaprolactone (PCL) that facilitates the hydrophobic properties of the polymeric matrix.

Application

Automotive fascia, cable jackets, side trim, fabric laminates, health care tubing, catheters, transdermal patches and in seals casters, shoes, bushings and wheels.
PU/PCL can be used in the formation of a polyurethane membrane for effective gas separation. It can also be used to synthesize reinforced hydrogel with good thermo-mechanical properties for biomedical applications.

Caractéristiques et avantages

Tough, high-performance, wear-resistant elastomer with good clarity, chemical resistance, flexibility and toughness. Can be used in current form or further polymerized. Low compression set

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H302,H315,H317,H319,H334

Classification des risques

Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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3D Networked Graphene-Ferromagnetic Hybrids for Fast Shape Memory Polymers with Enhanced Mechanical Stiffness and Thermal Conductivity
Lee S, et al.
Small, 10(19), 3880-3886 (2014)
Strong fiber reinforced hydrogels for biomedical applications
2011 IEEE 37th Annual Northeast Bioengineering Conference (NEBEC), 9(2), 1-2 (2011)
Gas separation in mixed matrix membranes based on polyurethane containing SiO2, ZSM-5, and ZIF-8 nanoparticles
Amedi HR and Aghajani M
Journal of Natural Gas Science and Engineering, 35(19), 695-702 (2016)
A hybrid electrospun PU/PCL scaffold satisfied the requirements of blood vessel prosthesis in terms of mechanical properties, pore size, and biocompatibility
Nguyen T, et al.
Journal of Biomaterials Science. Polymer Edition, 24(14), 1692-1706 (2013)
Mélusine Bouchet et al.
Materials science & engineering. C, Materials for biological applications, 100, 715-723 (2019-04-06)
The search for novel, more compliant vascular grafts for the replacement of blood vessels is ongoing, and predictive tools are needed to identify the most promising biomaterials. A simple analytical model was designed that enables the calculation of the ratio
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