Structural relaxation characteristics of glass-forming polymeric liquids subject to transient cross-links

L. M. Torell; P. Jacobsson; David L. Sidebottom; L. Borjesson

Structural relaxation characteristics of glass-forming polymeric liquids subject to transient cross-links

L. M. Torell, P. Jacobsson, David L. Sidebottom, L. Borjesson

Research output: Book/Report › Book

Abstract

We examine the relevance of the strong-fragile classification scheme for glass-forming polymeric systems using results from Brillouin and photon correlation spectroscopy. The dynamics of salt doped polypropylene oxide (PPO) have been investigated in relation to induced local structural ordering. It is accomplished by forming complexes of NaCF₃SO₃-PPO in which the cations act as transient cross-links between chains. The amount of cross-links depends on salt concentration and temperature. This allows for a test of the suggested relation between structural properties and some characteristics of the relaxation function such as its non-exponential time decay and non-Arrhenius temperature dependence.

Original language	English
Publisher	Publ by Dr. Dietrich Steinkopff Verlag
Number of pages	5
Volume	91
ISBN (Print)	0387914447
State	Published - 1993
Externally published	Yes

All Science Journal Classification (ASJC) codes

Colloid and Surface Chemistry
Chemistry (miscellaneous)
Physical and Theoretical Chemistry
Polymers and Plastics

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AU - Jacobsson, P.

AU - Sidebottom, David L.

AU - Borjesson, L.

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N2 - We examine the relevance of the strong-fragile classification scheme for glass-forming polymeric systems using results from Brillouin and photon correlation spectroscopy. The dynamics of salt doped polypropylene oxide (PPO) have been investigated in relation to induced local structural ordering. It is accomplished by forming complexes of NaCF3SO3-PPO in which the cations act as transient cross-links between chains. The amount of cross-links depends on salt concentration and temperature. This allows for a test of the suggested relation between structural properties and some characteristics of the relaxation function such as its non-exponential time decay and non-Arrhenius temperature dependence.

AB - We examine the relevance of the strong-fragile classification scheme for glass-forming polymeric systems using results from Brillouin and photon correlation spectroscopy. The dynamics of salt doped polypropylene oxide (PPO) have been investigated in relation to induced local structural ordering. It is accomplished by forming complexes of NaCF3SO3-PPO in which the cations act as transient cross-links between chains. The amount of cross-links depends on salt concentration and temperature. This allows for a test of the suggested relation between structural properties and some characteristics of the relaxation function such as its non-exponential time decay and non-Arrhenius temperature dependence.

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