Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

Safety Information

430218

Sigma-Aldrich

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

pellets, MDI-polyester/polyether polyurethane.

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

CAS Number:
68084-39-9
MDL number:
MFCD00217691
UNSPSC Code:
12162002
NACRES:
NA.23

abrasion resistance

10 mg (Taber, H-22 wheel)

Quality Level

100

form

beads
pellets

melt index

4 g/10 min (190°C/8.7kg)

hardness

84 (Shore A, ASTM D 2240)

transition temp

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

density

1.18 g/mL at 25 °C (lit.)

General description

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.

Features and Benefits

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

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Statements

H302,H315,H317,H319,H334

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

430218-BULK:
430218-VAR:
430218-1KG:
430218-250G:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCJ7537
MKCG1842
MKCB9217
MKBN8885V
MKBG4563

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service