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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)

Certificats d'analyse (COA)

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Sang-Chul Shin et al.
International journal of pharmaceutics, 234(1-2), 67-73 (2002-02-13)
The pharmacokinetics and bioavailability of triprolidine, antihistamines, were studied to determine the feasibility of enhanced transdemal delivery of triprolidine from the poly(4-methyl-1-pentene) (TPX) matrix system containing polyoxyethylene-2-oleyl ether in rabbits. The triprolidine-TPX matrix (50 mg/kg) was applied to abdominal skin
D M Wang et al.
Journal of controlled release : official journal of the Controlled Release Society, 50(1-3), 187-195 (1998-08-01)
In this study, asymmetric poly(4-methyl-1-pentene) (TPX) membranes, fabricated by the dry/wet inversion method, were applied to transdermal delivery of nitroglycerin (NTG), a drug for treating angina pectoris. The flux of NTG through the TPX membrane was measured in vitro by
G H Hsiue et al.
Biomaterials, 15(3), 163-171 (1994-02-01)
A poly(2-hydroxyethyl methacrylate) (pHEMA)-grafted polymer film was prepared by plasma-induced graft copolymerization onto an elastic material, silicone rubber, and a plastic material, poly(4-methyl-1-pentene) (TPX). The control, Ar plasma-treated and pHEMA-grafted silicone rubber and TPX surfaces were characterized by ESCA, FTIR-ATR
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
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