440043
Poly(4-methyl-1-pentene)
low molecular weight
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About This Item
Linear Formula:
(CH2CH[CH2CH(CH3)2])n
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
InChI
1S/C6H12/c1-4-5-6(2)3/h4,6H,1,5H2,2-3H3
SMILES string
CC(C)CC=C
InChI key
WSSSPWUEQFSQQG-UHFFFAOYSA-N
form
beads
melt index
180 g/min. (260°C/5kg)
dielectric constant
2.12, 100 Hz (ASTM D 150)
hardness
80 (Rockwell R, ASTM D 785)
mp
240 °C
transition temp
softening point 173 °C (Vicat, ASTM D 1525)
density
0.833 g/mL at 25 °C
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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.
Features and Benefits
Very low specific gravity, high transparency, resistant to oxidation and prone to stress cracking. Good electrical insulator.
Physical form
Low density thermoplastic.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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
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
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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