Degradation kinetics and thermomechanical properties of in-situ polymerized layered double hydroxides-ethylene-propylene copolymer

Hassam Mazhar; Farrukh Shehzad; Sung Gil Hong; Mamdouh A. Al-harthi

doi:10.1002/app.52002

Degradation kinetics and thermomechanical properties of in-situ polymerized layered double hydroxides-ethylene-propylene copolymer

Hassam Mazhar
, Farrukh Shehzad
, Sung Gil Hong
, Mamdouh A. Al-harthi^*

^*Corresponding author for this work

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

10 Scopus citations

Abstract

This paper reports the study of in-situ incorporation of NiFe-(Anion) layered double hydroxides (LDH) in the ethylene-propylene (EP) (95:05 molar ratio) copolymerization. NiFe LDHs were synthesized with different intercalated anions using the coprecipitation method. The EP/LDH nanocomposites showed improved thermal stability, nevertheless, the various types of intercalated anions in the LDH showed a remarkable effect on the thermal stability and the degradation mechanism of the resultant polymer nanocomposites. EP/LDH constituted with NiFe-CO₃/A (A = acetone washed) showed maximum improvement in the thermal stability concerning neat EP. The LDH incorporation in the composite influenced the polymer microstructure which was evident from the DSC and CRYSTAF analysis. The degradation kinetics of neat EP and EP/LDH nanocomposites were studied by employing the isoconversional method. The degradation kinetics models of different polymer samples were predicted by applying a generalized master plot. Moreover, EP nanocomposites exhibited higher storage modulus and elasticity as compared to neat EP copolymer.

Original language	English
Article number	52002
Journal	Journal of Applied Polymer Science
Volume	139
Issue number	16
DOIs	https://doi.org/10.1002/app.52002
State	Published - 20 Apr 2022

Bibliographical note

Publisher Copyright:
© 2021 Wiley Periodicals LLC.

Keywords

Avrami-Erofeev kinetics
LDH
degradation
ethylene propylene copolymer
master plot

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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@article{78a3de217c904321b04eb6bb86975061,

title = "Degradation kinetics and thermomechanical properties of in-situ polymerized layered double hydroxides-ethylene-propylene copolymer",

abstract = "This paper reports the study of in-situ incorporation of NiFe-(Anion) layered double hydroxides (LDH) in the ethylene-propylene (EP) (95:05 molar ratio) copolymerization. NiFe LDHs were synthesized with different intercalated anions using the coprecipitation method. The EP/LDH nanocomposites showed improved thermal stability, nevertheless, the various types of intercalated anions in the LDH showed a remarkable effect on the thermal stability and the degradation mechanism of the resultant polymer nanocomposites. EP/LDH constituted with NiFe-CO3/A (A = acetone washed) showed maximum improvement in the thermal stability concerning neat EP. The LDH incorporation in the composite influenced the polymer microstructure which was evident from the DSC and CRYSTAF analysis. The degradation kinetics of neat EP and EP/LDH nanocomposites were studied by employing the isoconversional method. The degradation kinetics models of different polymer samples were predicted by applying a generalized master plot. Moreover, EP nanocomposites exhibited higher storage modulus and elasticity as compared to neat EP copolymer.",

keywords = "Avrami-Erofeev kinetics, LDH, degradation, ethylene propylene copolymer, master plot",

author = "Hassam Mazhar and Farrukh Shehzad and Hong, \{Sung Gil\} and Al-harthi, \{Mamdouh A.\}",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley Periodicals LLC.",

year = "2022",

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doi = "10.1002/app.52002",

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T1 - Degradation kinetics and thermomechanical properties of in-situ polymerized layered double hydroxides-ethylene-propylene copolymer

AU - Mazhar, Hassam

AU - Shehzad, Farrukh

AU - Hong, Sung Gil

AU - Al-harthi, Mamdouh A.

PY - 2022/4/20

Y1 - 2022/4/20

N2 - This paper reports the study of in-situ incorporation of NiFe-(Anion) layered double hydroxides (LDH) in the ethylene-propylene (EP) (95:05 molar ratio) copolymerization. NiFe LDHs were synthesized with different intercalated anions using the coprecipitation method. The EP/LDH nanocomposites showed improved thermal stability, nevertheless, the various types of intercalated anions in the LDH showed a remarkable effect on the thermal stability and the degradation mechanism of the resultant polymer nanocomposites. EP/LDH constituted with NiFe-CO3/A (A = acetone washed) showed maximum improvement in the thermal stability concerning neat EP. The LDH incorporation in the composite influenced the polymer microstructure which was evident from the DSC and CRYSTAF analysis. The degradation kinetics of neat EP and EP/LDH nanocomposites were studied by employing the isoconversional method. The degradation kinetics models of different polymer samples were predicted by applying a generalized master plot. Moreover, EP nanocomposites exhibited higher storage modulus and elasticity as compared to neat EP copolymer.

AB - This paper reports the study of in-situ incorporation of NiFe-(Anion) layered double hydroxides (LDH) in the ethylene-propylene (EP) (95:05 molar ratio) copolymerization. NiFe LDHs were synthesized with different intercalated anions using the coprecipitation method. The EP/LDH nanocomposites showed improved thermal stability, nevertheless, the various types of intercalated anions in the LDH showed a remarkable effect on the thermal stability and the degradation mechanism of the resultant polymer nanocomposites. EP/LDH constituted with NiFe-CO3/A (A = acetone washed) showed maximum improvement in the thermal stability concerning neat EP. The LDH incorporation in the composite influenced the polymer microstructure which was evident from the DSC and CRYSTAF analysis. The degradation kinetics of neat EP and EP/LDH nanocomposites were studied by employing the isoconversional method. The degradation kinetics models of different polymer samples were predicted by applying a generalized master plot. Moreover, EP nanocomposites exhibited higher storage modulus and elasticity as compared to neat EP copolymer.

KW - Avrami-Erofeev kinetics

KW - LDH

KW - degradation

KW - ethylene propylene copolymer

KW - master plot

UR - https://www.scopus.com/pages/publications/85120812942

U2 - 10.1002/app.52002

DO - 10.1002/app.52002

M3 - Article

AN - SCOPUS:85120812942

SN - 0021-8995

VL - 139

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

IS - 16

M1 - 52002

ER -

Degradation kinetics and thermomechanical properties of in-situ polymerized layered double hydroxides-ethylene-propylene copolymer

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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