Influence of graphene on the non-isothermal crystallization kinetics of poly(vinyl alcohol)/starch composite

Osamah A. Bin-Dahman; Farrukh Shehzad; Mamdouh A. Al-Harthi

doi:10.1007/s10965-017-1400-7

Influence of graphene on the non-isothermal crystallization kinetics of poly(vinyl alcohol)/starch composite

Osamah A. Bin-Dahman
, Farrukh Shehzad
, Mamdouh A. Al-Harthi^*

^*Corresponding author for this work

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

22 Scopus citations

Abstract

Non-isothermal crystallization behavior of poly(vinyl alcohol)/starch and poly(vinyl alcohol)/starch/graphene nanocomposites was studied using differential scanning calorimetry (DSC). Ozawa and Mo models were used to analyze the non-isothermal kinetics. The differential Friedman method was used to evaluate the effective activation energy (E_A) of the nanocomposites. The data fits the Mo Model well in the investigated temperature range. Graphene nucleates the crystallization of the composites by increasing the crystallization onset temperature along with the lowering of E_A. However, significant changes in the crystallization half-time were not observed, suggesting that the effect of graphene is more prominent at the nucleation stage.

Original language	English
Article number	5
Journal	Journal of Polymer Research
Volume	25
Issue number	1
DOIs	https://doi.org/10.1007/s10965-017-1400-7
State	Published - 1 Jan 2018

Bibliographical note

Publisher Copyright:
© 2017, Springer Science+Business Media B.V., part of Springer Nature.

Keywords

DSC
Graphene
Nanocomposites
Non-isothermal crystallization
Poly(vinyl alcohol)/starch

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

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10.1007/s10965-017-1400-7

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abstract = "Non-isothermal crystallization behavior of poly(vinyl alcohol)/starch and poly(vinyl alcohol)/starch/graphene nanocomposites was studied using differential scanning calorimetry (DSC). Ozawa and Mo models were used to analyze the non-isothermal kinetics. The differential Friedman method was used to evaluate the effective activation energy (EA) of the nanocomposites. The data fits the Mo Model well in the investigated temperature range. Graphene nucleates the crystallization of the composites by increasing the crystallization onset temperature along with the lowering of EA. However, significant changes in the crystallization half-time were not observed, suggesting that the effect of graphene is more prominent at the nucleation stage.",

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PY - 2018/1/1

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N2 - Non-isothermal crystallization behavior of poly(vinyl alcohol)/starch and poly(vinyl alcohol)/starch/graphene nanocomposites was studied using differential scanning calorimetry (DSC). Ozawa and Mo models were used to analyze the non-isothermal kinetics. The differential Friedman method was used to evaluate the effective activation energy (EA) of the nanocomposites. The data fits the Mo Model well in the investigated temperature range. Graphene nucleates the crystallization of the composites by increasing the crystallization onset temperature along with the lowering of EA. However, significant changes in the crystallization half-time were not observed, suggesting that the effect of graphene is more prominent at the nucleation stage.

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Influence of graphene on the non-isothermal crystallization kinetics of poly(vinyl alcohol)/starch composite

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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