Analysis of two-stage crystallization kinetics for poly(ethylene terephthalate)/ poly(ether imide) blends

Jenn Chiu Hwang; Chia Chen Chen; Hsin Lung Chen; Wen Chung Ou Yang

doi:10.1016/S0032-3861(96)00982-2

Analysis of two-stage crystallization kinetics for poly(ethylene terephthalate)/ poly(ether imide) blends

Jenn Chiu Hwang^*, Chia Chen Chen, Hsin Lung Chen, Wen Chung Ou Yang

^*Corresponding author for this work

Department of Chemical and Materials Engineering

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

25 Scopus citations

Abstract

Isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) in its blends with poly(ether imide) (PEI) has been investigated by differential scanning calorimetry (d.s.c.). A modified Avrami analysis considering both primary and secondary crystallization was employed to extract the kinetic behaviour of these two crystallization stages. The crystallization rate constants at various crystallization temperatures (T_c) were obtained from the analysis for different PET/PEI blend compositions. A Hoffman-Lauritzen analysis was conducted for both primary and secondary crystallization. An average value of the nucleation constant K_g ≈ 2.89 × 10⁵ was obtained from the analysis, and the fold surface free energy σ_e was then calculated to be 70.6 erg cm^-2.

Original language	English
Pages (from-to)	4097-4101
Number of pages	5
Journal	Polymer
Volume	38
Issue number	16
DOIs	https://doi.org/10.1016/S0032-3861(96)00982-2
State	Published - 08 1997

Keywords

Crystallization kinetics
Poly(ether imide)
Poly(ethylene terephthalate)

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10.1016/S0032-3861(96)00982-2

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title = "Analysis of two-stage crystallization kinetics for poly(ethylene terephthalate)/ poly(ether imide) blends",

abstract = "Isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) in its blends with poly(ether imide) (PEI) has been investigated by differential scanning calorimetry (d.s.c.). A modified Avrami analysis considering both primary and secondary crystallization was employed to extract the kinetic behaviour of these two crystallization stages. The crystallization rate constants at various crystallization temperatures (Tc) were obtained from the analysis for different PET/PEI blend compositions. A Hoffman-Lauritzen analysis was conducted for both primary and secondary crystallization. An average value of the nucleation constant Kg ≈ 2.89 × 105 was obtained from the analysis, and the fold surface free energy σe was then calculated to be 70.6 erg cm-2.",

keywords = "Crystallization kinetics, Poly(ether imide), Poly(ethylene terephthalate)",

author = "Hwang, {Jenn Chiu} and Chen, {Chia Chen} and Chen, {Hsin Lung} and Yang, {Wen Chung Ou}",

year = "1997",

month = aug,

doi = "10.1016/S0032-3861(96)00982-2",

language = "英语",

volume = "38",

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journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

number = "16",

}

TY - JOUR

T1 - Analysis of two-stage crystallization kinetics for poly(ethylene terephthalate)/ poly(ether imide) blends

AU - Hwang, Jenn Chiu

AU - Chen, Chia Chen

AU - Chen, Hsin Lung

AU - Yang, Wen Chung Ou

PY - 1997/8

Y1 - 1997/8

N2 - Isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) in its blends with poly(ether imide) (PEI) has been investigated by differential scanning calorimetry (d.s.c.). A modified Avrami analysis considering both primary and secondary crystallization was employed to extract the kinetic behaviour of these two crystallization stages. The crystallization rate constants at various crystallization temperatures (Tc) were obtained from the analysis for different PET/PEI blend compositions. A Hoffman-Lauritzen analysis was conducted for both primary and secondary crystallization. An average value of the nucleation constant Kg ≈ 2.89 × 105 was obtained from the analysis, and the fold surface free energy σe was then calculated to be 70.6 erg cm-2.

AB - Isothermal crystallization kinetics of poly(ethylene terephthalate) (PET) in its blends with poly(ether imide) (PEI) has been investigated by differential scanning calorimetry (d.s.c.). A modified Avrami analysis considering both primary and secondary crystallization was employed to extract the kinetic behaviour of these two crystallization stages. The crystallization rate constants at various crystallization temperatures (Tc) were obtained from the analysis for different PET/PEI blend compositions. A Hoffman-Lauritzen analysis was conducted for both primary and secondary crystallization. An average value of the nucleation constant Kg ≈ 2.89 × 105 was obtained from the analysis, and the fold surface free energy σe was then calculated to be 70.6 erg cm-2.

KW - Crystallization kinetics

KW - Poly(ether imide)

KW - Poly(ethylene terephthalate)

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U2 - 10.1016/S0032-3861(96)00982-2

DO - 10.1016/S0032-3861(96)00982-2

M3 - 文章

AN - SCOPUS:0031210094

SN - 0032-3861

VL - 38

SP - 4097

EP - 4101

JO - Polymer

JF - Polymer

IS - 16

ER -

Analysis of two-stage crystallization kinetics for poly(ethylene terephthalate)/ poly(ether imide) blends

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Keywords

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