CAS 25068-26-2 Poly(4-methyl-1-pentene) - Materials / Alfa Chemistry

NAVIGATION

Poly(4-methyl-1-pentene)

PRICE INQUIRY

Catalog Number

ACM25068262-1

CAS Number

25068-26-2

Product Name

Poly(4-methyl-1-pentene)

Structure

Category

Hydrophobic Polymers; Polymers

Description

4-methyl-1-pentene is a colorless liquid. (USCG, 1999)

IUPAC Name

4-methylpent-1-ene

Molecular Weight

84.16g/mol

Molecular Formula

C6H12

Canonical SMILES

CC(C)CC=C

InChI

InChI=1S/C6H12/c1-4-5-6(2)3/h4,6H,1,5H2,2-3H3

InChI Key

WSSSPWUEQFSQQG-UHFFFAOYSA-N

Boiling Point

127.4 to 129.2 °F at 760 mm Hg (USCG, 1999);53.9 °C

Melting Point

-153.6 °C

Flash Point

-25 °F (USCG, 1999)

Density

0.665 (USCG, 1999)

Solubility

5.70e-04 M

Application

Poly(4-Methyl-1-Pentene) serves as a versatile material well-suited for a variety of demanding applications due to its unique properties. Introduced initially by Imperial Chemical Industries and later exclusively produced by Mitsui Petrochemical Industries, this polymer is created using a Ziegler-Natta catalyst in a controlled environment. Its composition, enhanced with a comonomer like 1-hexene, yields a predominantly isotactic structure that offers significant advantages over other polyolefins. Notably, it possesses the lowest specific gravity among current polymers at 0.83, along with impressive thermal properties, such as a crystalline melting point of 240°C and a Vicat softening temperature of 179°C, ensuring stability up to around 200°C. Its transparency rivals that of poly(methyl methacrylate) and polystyrene. Additionally, Poly(4-Methyl-1-Pentene) demonstrates exceptional resistance to various chemical environments akin to polypropylene, although it is susceptible to environmental stress cracking similar to low-density polyethylene. Despite its higher permeability to gases and water vapor relative to other polyolefins, it remains easily processable via standard extrusion and injection molding techniques. These attributes make it an ideal choice for applications requiring transparency and heat resistance, such as medical and laboratory ware, coating for microwaveable and oven-safe food containers, and films for decorative laminates and printed circuit boards.

Complexity

35.3

Covalently-Bonded Unit Count

EC Number

211-720-1

Exact Mass

84.0939g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

poly(4-methyl-1-pentene)

Monoisotopic Mass