Equilibrium order-to-disorder transition temperature in block copolymers

G. Floudas; T. Pakula; G. Velis; S. Sioula; N. Hadjichristidis

doi:10.1063/1.476056

Equilibrium order-to-disorder transition temperature in block copolymers

G. Floudas^*, T. Pakula, G. Velis, S. Sioula, N. Hadjichristidis

^*Corresponding author for this work

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

35 Scopus citations

Abstract

The process of order-to-disorder transition (ODT) has been studied in a symmetric diblock copolymer AB and in an asymmetric miktoarm star block copolymer of the AB₃ type. We find that the T_ODT depends on the ordering temperature just as the melting temperature in semicrystalline homopolymers depends on the crystallization temperature. In this work we show, for the first time, the existence of an equilibrium transition temperature (T⁰_ODT) and we demonstrate how this can be obtained. The dependence of the apparent T′_ODT on the supercooling is attributed to grains of different sizes.

Original language	English (US)
Pages (from-to)	6498-6501
Number of pages	4
Journal	JOURNAL OF CHEMICAL PHYSICS
Volume	108
Issue number	15
DOIs	https://doi.org/10.1063/1.476056
State	Published - Apr 15 1998
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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abstract = "The process of order-to-disorder transition (ODT) has been studied in a symmetric diblock copolymer AB and in an asymmetric miktoarm star block copolymer of the AB3 type. We find that the TODT depends on the ordering temperature just as the melting temperature in semicrystalline homopolymers depends on the crystallization temperature. In this work we show, for the first time, the existence of an equilibrium transition temperature (T0ODT) and we demonstrate how this can be obtained. The dependence of the apparent T′ODT on the supercooling is attributed to grains of different sizes.",

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T1 - Equilibrium order-to-disorder transition temperature in block copolymers

AU - Floudas, G.

AU - Pakula, T.

AU - Velis, G.

AU - Sioula, S.

AU - Hadjichristidis, N.

PY - 1998/4/15

Y1 - 1998/4/15

N2 - The process of order-to-disorder transition (ODT) has been studied in a symmetric diblock copolymer AB and in an asymmetric miktoarm star block copolymer of the AB3 type. We find that the TODT depends on the ordering temperature just as the melting temperature in semicrystalline homopolymers depends on the crystallization temperature. In this work we show, for the first time, the existence of an equilibrium transition temperature (T0ODT) and we demonstrate how this can be obtained. The dependence of the apparent T′ODT on the supercooling is attributed to grains of different sizes.

AB - The process of order-to-disorder transition (ODT) has been studied in a symmetric diblock copolymer AB and in an asymmetric miktoarm star block copolymer of the AB3 type. We find that the TODT depends on the ordering temperature just as the melting temperature in semicrystalline homopolymers depends on the crystallization temperature. In this work we show, for the first time, the existence of an equilibrium transition temperature (T0ODT) and we demonstrate how this can be obtained. The dependence of the apparent T′ODT on the supercooling is attributed to grains of different sizes.

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U2 - 10.1063/1.476056

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JF - JOURNAL OF CHEMICAL PHYSICS

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ER -

Equilibrium order-to-disorder transition temperature in block copolymers

Abstract

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