Order-to-disorder transition in a diblock copolymer studied at ultrasonic frequencies with a shear wave reflection technique

I. Alig; S. Tadjbakhsch; N. Hadjichristidis; G. Floudas

doi:10.1209/epl/i2000-00437-y

Order-to-disorder transition in a diblock copolymer studied at ultrasonic frequencies with a shear wave reflection technique

I. Alig^*, S. Tadjbakhsch, N. Hadjichristidis, G. Floudas

^*Corresponding author for this work

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

2 Scopus citations

Abstract

The order-to-disorder transition (ODT) has been studied in a poly(styrene-b-isoprene) diblock copolymer with conventional rheology and an ultrasonic shear wave reflection technique. Despite the operational frequency in the latter experiment (f = 5 MHz) being much higher than the critical frequency ω_c the storage modulus exhibits a discontinuous increase at the same temperature at which in conventional rheology a discontinuous decrease is obtained. This results from a change in the mixing law at the ODT. The method constitutes a non-destructive probe of the viscoelastic properties of "soft" materials in the vicinity of phase transitions.

Original language	English (US)
Pages (from-to)	291-296
Number of pages	6
Journal	Europhysics Letters
Volume	52
Issue number	3
DOIs	https://doi.org/10.1209/epl/i2000-00437-y
State	Published - Nov 1 2000
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1209/epl/i2000-00437-y

Cite this

@article{91d525d559c84554b4cfa8b23bc11a17,

title = "Order-to-disorder transition in a diblock copolymer studied at ultrasonic frequencies with a shear wave reflection technique",

abstract = "The order-to-disorder transition (ODT) has been studied in a poly(styrene-b-isoprene) diblock copolymer with conventional rheology and an ultrasonic shear wave reflection technique. Despite the operational frequency in the latter experiment (f = 5 MHz) being much higher than the critical frequency ωc the storage modulus exhibits a discontinuous increase at the same temperature at which in conventional rheology a discontinuous decrease is obtained. This results from a change in the mixing law at the ODT. The method constitutes a non-destructive probe of the viscoelastic properties of {"}soft{"} materials in the vicinity of phase transitions.",

author = "I. Alig and S. Tadjbakhsch and N. Hadjichristidis and G. Floudas",

year = "2000",

month = nov,

day = "1",

doi = "10.1209/epl/i2000-00437-y",

language = "English (US)",

volume = "52",

pages = "291--296",

journal = "Europhysics Letters",

issn = "0295-5075",

publisher = "European Physical Society",

number = "3",

}

TY - JOUR

T1 - Order-to-disorder transition in a diblock copolymer studied at ultrasonic frequencies with a shear wave reflection technique

AU - Alig, I.

AU - Tadjbakhsch, S.

AU - Hadjichristidis, N.

AU - Floudas, G.

PY - 2000/11/1

Y1 - 2000/11/1

N2 - The order-to-disorder transition (ODT) has been studied in a poly(styrene-b-isoprene) diblock copolymer with conventional rheology and an ultrasonic shear wave reflection technique. Despite the operational frequency in the latter experiment (f = 5 MHz) being much higher than the critical frequency ωc the storage modulus exhibits a discontinuous increase at the same temperature at which in conventional rheology a discontinuous decrease is obtained. This results from a change in the mixing law at the ODT. The method constitutes a non-destructive probe of the viscoelastic properties of "soft" materials in the vicinity of phase transitions.

AB - The order-to-disorder transition (ODT) has been studied in a poly(styrene-b-isoprene) diblock copolymer with conventional rheology and an ultrasonic shear wave reflection technique. Despite the operational frequency in the latter experiment (f = 5 MHz) being much higher than the critical frequency ωc the storage modulus exhibits a discontinuous increase at the same temperature at which in conventional rheology a discontinuous decrease is obtained. This results from a change in the mixing law at the ODT. The method constitutes a non-destructive probe of the viscoelastic properties of "soft" materials in the vicinity of phase transitions.

UR - http://www.scopus.com/inward/record.url?scp=0034310090&partnerID=8YFLogxK

U2 - 10.1209/epl/i2000-00437-y

DO - 10.1209/epl/i2000-00437-y

M3 - Article

AN - SCOPUS:0034310090

SN - 0295-5075

VL - 52

SP - 291

EP - 296

JO - Europhysics Letters

JF - Europhysics Letters

IS - 3

ER -

Order-to-disorder transition in a diblock copolymer studied at ultrasonic frequencies with a shear wave reflection technique

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this