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:
MDL number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
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
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
Low density thermoplastic.
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
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
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
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
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