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190993

Sigma-Aldrich

Poly(4-methyl-1-pentene)

medium molecular weight

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About This Item

Formule linéaire :
(CH2CH[CH2CH(CH3)2])n
Numéro CAS:
25068-26-2
Numéro MDL:
MFCD00084382
Code UNSPSC :
12162002
ID de substance PubChem :
24851464
Nomenclature NACRES :
NA.23

Forme

solid

Indice de fusion

26 g/10 min (260°C/5kg)

Résistance à l'impact

3 kg.cm/cm2 (Izod, ASTM D 256)

Constante diélectrique

2.12, 100 MHz (ASTM D 150)

Dureté

80 (Rockwell R, ASTM D 758)

Indice de réfraction

n20/D 1.463

Pf

235 °C

Température de transition

softening point 178 °C (Vicat, ASTM D 1525)

Densité

0.835 g/mL at 25 °C

Chaîne SMILES 

CC(C)CC=C

InChI

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

Clé InChI

WSSSPWUEQFSQQG-UHFFFAOYSA-N

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Catégories apparentées

Application

Coating for paper food containers for microwave and conventional ovens. Release coatings for food and synthetic leather. Molded into medical labware. Film for decorative laminates and printed circuit boards.

Caractéristiques et avantages

Very low specific gravity, high transparency, resistant to oxidation and prone to stress cracking. Good electrical insulator.

Forme physique

Crystalline, isotactic.

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

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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LaNetra M Clayton et al.
Journal of nanoscience and nanotechnology, 6(8), 2520-2524 (2006-10-14)
Poly(4-methyl-1-pentene), PMP, a high melting polymer composed of hydrogen and carbon, has the potential to become an alternative to polyethylene (PE) as shielding material against Galactic Cosmic Radiation (GCR). PMP exhibits higher thermal stability than PE and is transparent in
Sang-Chul Shin et al.
International journal of pharmaceutics, 235(1-2), 141-147 (2002-03-07)
Triprolidine-containing matrix was fabricated with poly(4-methyl-1-pentene) (TPX) polymer to control the release of the drug. Effect of penetration enhancer and stripping of skin on the permeation of triprolidine through the excised mouse skin was studied. Penetrating enhancers showed the increased
Ayano Chiba et al.
Physical review. E, Statistical, nonlinear, and soft matter physics, 85(2 Pt 1), 021807-021807 (2012-04-03)
High-pressure in situ x-ray diffraction and specific-volume measurements on isotactic poly(4-methyl-1-pentene) melt have uncovered abrupt changes in the pressure dependence of microscopic structure as well as that of macroscopic density. The first sharp diffraction peak of the polymer melt, which
Michael T Demko et al.
ACS nano, 6(8), 6890-6896 (2012-07-18)
Soft lithography methods are emerging as useful tools for high-resolution, three-dimensional patterning of polymers and nanoparticles. However, the low Young's modulus of the standard template material, poly(dimethylsiloxane) (PDMS), limits attainable resolution, fidelity, and alignment capability. While much research has been
C Prasser et al.
European journal of anaesthesiology, 25(2), 152-157 (2007-07-28)
It has been demonstrated that volatile anaesthetics have cardioprotective properties during open-heart procedures, especially when administered continuously. European Council Directive 93/42/EEC concerning medical devices bans the supplementary incorporation of anaesthetic vaporizers in the bypass circuit. Since the uptake of volatile
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