Physical Review E 2012-02-01

Pressure-induced structural change of intermediate-range order in poly(4-methyl-1-pentene) melt.

Ayano Chiba, Nobumasa Funamori, Kazuya Nakayama, Yasuo Ohishi, Stephen M Bennington, Sanjay Rastogi, Anuj Shukla, Kazuhiko Tsuji, Mikihito Takenaka

Index: Phys. Rev. E. Stat. Nonlin. Soft Matter Phys. 85(2 Pt 1) , 021807, (2012)

Full Text: HTML

Abstract

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 is related to the intermediate-range order and is explained as resulting from the correlations between main chains, is suppressed at pressures less than 1 kbar. These changes in intermediate-range order show similarities to those seen in liquid-liquid or amorphous-amorphous transitions in simpler small molecule based systems, suggesting that this kind of phenomenon may occur in a wide range of materials.© 2012 American Physical Society

Related Compounds

  • Poly(4-methyl-1-pe...

Related Articles:

Plasma-induced graft copolymerization of HEMA onto silicone rubber and TPX film improving rabbit corneal epithelial cell attachment and growth.

1994-02-01

[Biomaterials 15(3) , 163-71, (1994)]

Application of asymmetric TPX membranes to transdermal delivery of nitroglycerin.

1998-01-02

[J. Control. Release 50(1-3) , 187-95, (1998)]

Transdermal delivery of triprolidine using TPX polymer membrane.

2002-03-20

[Int. J. Pharm. 235(1-2) , 141-7, (2002)]

Application of TPX polymer membranes for the controlled release of triprolidine.

2002-01-31

[Int. J. Pharm. 232(1-2) , 131-7, (2002)]

Rigid, vapor-permeable poly(4-methyl-2-pentyne) templates for high resolution patterning of nanoparticles and polymers.

2012-08-28

[ACS Nano 6(8) , 6890-6, (2012)]

More Articles...