What question did this study set out to answer?

Characterize how sub-glass transition annealing conditions and prior thermal history govern the kinetics of enthalpy relaxation in glassy poly(vinyl chloride).

May 1, 1982Macromolecules

Effects of annealing and prior history on enthalpy relaxation in glassy polymers. 1. Experimental study on poly(vinyl chloride)

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Authors

ABA. R. BerensMiddlebury College IHIan M. HodgeRochester Institute of Technology

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Implication

Experimental study demonstrates enthalpy relaxation behavior in poly(vinyl chloride) across varying annealing treatments, highlighting structural recovery dynamics in glassy polymers.

Key Points

Characterize how sub-glass transition annealing conditions and prior thermal history govern the kinetics of enthalpy relaxation in glassy poly(vinyl chloride).
Subjected poly(vinyl chloride) samples to defined thermal conditioning cycles followed by isothermal annealing below the glass transition temperature.
Quantified enthalpy relaxation and thermal recovery kinetics via differential scanning calorimetry across varied aging times and temperatures.
Isothermal annealing below the glass transition temperature drives progressive enthalpy relaxation that scales nonlinearly with aging duration.
Prior thermal history strongly influences subsequent structural relaxation, altering both the rate of energy dissipation and the shape of the recovery peak.

Cite This Study

Berens et al. (1982) studied this question.

synapsesocial.com/papers/6a78fa4d1ad0da16156746e2 https://doi.org/10.1021/ma00231a015

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Implication

Experimental study demonstrates enthalpy relaxation behavior in poly(vinyl chloride) across varying annealing treatments, highlighting structural recovery dynamics in glassy polymers.

Effects of annealing and prior history on enthalpy relaxation in glassy polymers. 1. Experimental study on poly(vinyl chloride)

Discussion

Member takes

Implication

Key Points

Cite This Study

Effects of annealing and prior history on enthalpy relaxation in glassy polymers. 1. Experimental study on poly(vinyl chloride)

Discussion

Member takes

Implication

Key Points

Cite This Study

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