Enthalpy relaxation in glassy polystyrenes: 2

A. Brunacci; J. M G Cowie; R. Ferguson; I. J. McEwen

Enthalpy relaxation in glassy polystyrenes: 2

A. Brunacci
, J. M G Cowie
, R. Ferguson
, I. J. McEwen

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

The changes in enthalpy (?H₈) between the experimental glass and the fully relaxed glass for two polystyrene samples of different molar masses have been estimated using the Cowie-Ferguson approach. These were then compared with the change predicted by a simple two-state conformational energy expression for the specific heat increment at constant volume. Comments on the nature of allowed motions in the glass are made. © 1997 Elsevier Science Ltd.

Original language	English
Pages (from-to)	3263-3268
Number of pages	6
Journal	Polymer
Volume	38
Issue number	13
Publication status	Published - Jun 1997

Keywords

Enthalpy relaxation
Equilibrium glass
Physical ageing

Cite this

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title = "Enthalpy relaxation in glassy polystyrenes: 2",

abstract = "The changes in enthalpy (?H8) between the experimental glass and the fully relaxed glass for two polystyrene samples of different molar masses have been estimated using the Cowie-Ferguson approach. These were then compared with the change predicted by a simple two-state conformational energy expression for the specific heat increment at constant volume. Comments on the nature of allowed motions in the glass are made. {\textcopyright} 1997 Elsevier Science Ltd.",

keywords = "Enthalpy relaxation, Equilibrium glass, Physical ageing",

author = "A. Brunacci and Cowie, \{J. M G\} and R. Ferguson and McEwen, \{I. J.\}",

year = "1997",

month = jun,

language = "English",

volume = "38",

pages = "3263--3268",

journal = "Polymer",

publisher = "Elsevier B.V.",

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T2 - 2

AU - Brunacci, A.

AU - Cowie, J. M G

AU - Ferguson, R.

AU - McEwen, I. J.

PY - 1997/6

Y1 - 1997/6

N2 - The changes in enthalpy (?H8) between the experimental glass and the fully relaxed glass for two polystyrene samples of different molar masses have been estimated using the Cowie-Ferguson approach. These were then compared with the change predicted by a simple two-state conformational energy expression for the specific heat increment at constant volume. Comments on the nature of allowed motions in the glass are made. © 1997 Elsevier Science Ltd.

AB - The changes in enthalpy (?H8) between the experimental glass and the fully relaxed glass for two polystyrene samples of different molar masses have been estimated using the Cowie-Ferguson approach. These were then compared with the change predicted by a simple two-state conformational energy expression for the specific heat increment at constant volume. Comments on the nature of allowed motions in the glass are made. © 1997 Elsevier Science Ltd.

KW - Enthalpy relaxation

KW - Equilibrium glass

KW - Physical ageing

UR - https://www.scopus.com/pages/publications/0031164997

M3 - Article

VL - 38

SP - 3263

EP - 3268

JO - Polymer

JF - Polymer

IS - 13

ER -

Enthalpy relaxation in glassy polystyrenes: 2

Abstract

Keywords

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