Dilatometric studies of physical aging of polyetherimide

J. W. Sobieski; S. L. Simon; D. J. Plazek

doi:10.1007/bf01987470

Dilatometric studies of physical aging of polyetherimide

J. W. Sobieski, S. L. Simon, D. J. Plazek

Chemical Engineering

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

1 Scopus citations

Abstract

Physical aging of polyetherimide (PEI) was studied using a bellows dilatometer based on Zoller's design. A linear variable differential transformer (LVDT) is used to measure the displacement of the bellows. The voltage output of the LVDT is interfaced to a computer for automated data collection. Isothermal aging experiments were carried out at temperatures near the glass temperature (206-209°C) using a constant temperature oil bath maintained at the desired aging temperature. The time required to reach equilibrium and the reduced curve produced by aging time-temperature superposition are given. The results compare well with data obtained by capillary dilatometry for the same material.

Original language	English
Pages (from-to)	455-460
Number of pages	6
Journal	Journal of Thermal Analysis
Volume	49
Issue number	1
DOIs	https://doi.org/10.1007/bf01987470
State	Published - 1997

Keywords

Glass
Physical aging
Polyetherimide
Volume recovery

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10.1007/bf01987470

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title = "Dilatometric studies of physical aging of polyetherimide",

abstract = "Physical aging of polyetherimide (PEI) was studied using a bellows dilatometer based on Zoller's design. A linear variable differential transformer (LVDT) is used to measure the displacement of the bellows. The voltage output of the LVDT is interfaced to a computer for automated data collection. Isothermal aging experiments were carried out at temperatures near the glass temperature (206-209°C) using a constant temperature oil bath maintained at the desired aging temperature. The time required to reach equilibrium and the reduced curve produced by aging time-temperature superposition are given. The results compare well with data obtained by capillary dilatometry for the same material.",

keywords = "Glass, Physical aging, Polyetherimide, Volume recovery",

author = "Sobieski, {J. W.} and Simon, {S. L.} and Plazek, {D. J.}",

year = "1997",

doi = "10.1007/bf01987470",

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T1 - Dilatometric studies of physical aging of polyetherimide

AU - Sobieski, J. W.

AU - Simon, S. L.

AU - Plazek, D. J.

PY - 1997

Y1 - 1997

N2 - Physical aging of polyetherimide (PEI) was studied using a bellows dilatometer based on Zoller's design. A linear variable differential transformer (LVDT) is used to measure the displacement of the bellows. The voltage output of the LVDT is interfaced to a computer for automated data collection. Isothermal aging experiments were carried out at temperatures near the glass temperature (206-209°C) using a constant temperature oil bath maintained at the desired aging temperature. The time required to reach equilibrium and the reduced curve produced by aging time-temperature superposition are given. The results compare well with data obtained by capillary dilatometry for the same material.

AB - Physical aging of polyetherimide (PEI) was studied using a bellows dilatometer based on Zoller's design. A linear variable differential transformer (LVDT) is used to measure the displacement of the bellows. The voltage output of the LVDT is interfaced to a computer for automated data collection. Isothermal aging experiments were carried out at temperatures near the glass temperature (206-209°C) using a constant temperature oil bath maintained at the desired aging temperature. The time required to reach equilibrium and the reduced curve produced by aging time-temperature superposition are given. The results compare well with data obtained by capillary dilatometry for the same material.

KW - Glass

KW - Physical aging

KW - Polyetherimide

KW - Volume recovery

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JO - Journal of Thermal Analysis

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