Home
Resources
Publications
Dispersion of Single-Walled Carbon Nanotubes in a Non-Polar Polymer, poly(4-methyl-1-pentene)

Dispersion of Single-Walled Carbon Nanotubes in a Non-Polar Polymer, poly(4-methyl-1-pentene)

LaNetra M Clayton, Timofey G Gerasimov, Martin Cinke, M Meyyappan, Julie P Harmon

J Nanosci Nanotechnol. 2006 Aug;6(8):2520-4.

PMID: 17037866

Abstract:

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 the UV/visible region of the electromagnetic spectrum. Single walled carbon nanotubes (SWNTs) were pretreated with a polar solvent, N, N-Dimethylformimide (DMF), and then dispersed in a halogenated hydrocarbon, cyclohexyl chloride, which also dissolved the non polar polymer, PMP. The composites were characterized via differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), microhardness measurements, and optical microscopy. DMA data revealed that the carbon nanotubes contributed to the enhancement of the high temperature alpha(c) relaxation which is thought to arise from motion around crystalline regions in the matrix. The storage modulus (60 Hz) increased from 2409 MPa in the neat PMP to 3716 MPa at -50 degrees C. The magnitude of the increase diminished near and above the glass transition region; the glassy matrix restricted motion of the crystalline regions. DSC data showed an increase in the percent crystallinity of the composite (75%) as compared to the neat polymer (68%). Low concentrations of nanotubes, when well dispersed, produced nanocomposites with varying degrees of transparency.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP25068262	Poly(4-methyl-1-pentene)		25068-26-2	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: