190993
Poly(4-methyl-1-pentene)
medium molecular weight
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About This Item
Linear Formula:
(CH2CH[CH2CH(CH3)2])n
CAS Number:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
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Quality Level
form
solid
melt index
26 g/10 min (260°C/5kg)
impact strength
3 kg.cm/cm2 (Izod, ASTM D 256)
dielectric constant
2.12, 100 MHz (ASTM D 150)
hardness
80 (Rockwell R, ASTM D 758)
refractive index
n20/D 1.463
mp
235 °C
transition temp
softening point 178 °C (Vicat, ASTM D 1525)
density
0.835 g/mL at 25 °C
SMILES string
CC(C)CC=C
InChI
1S/C6H12/c1-4-5-6(2)3/h4,6H,1,5H2,2-3H3
InChI key
WSSSPWUEQFSQQG-UHFFFAOYSA-N
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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
Crystalline, isotactic.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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
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
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
Elimination of sevoflurane is reduced in plasma-tight compared to conventional membrane oxygenators.
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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