Linear viscoelastic properties of mixtures of 3- and 4-arm polybutadiene stars

N. Hadjichristidis; J. Roovers

doi:10.1016/0032-3861(85)90233-2

Linear viscoelastic properties of mixtures of 3- and 4-arm polybutadiene stars

N. Hadjichristidis^*, J. Roovers

^*Corresponding author for this work

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

28 Scopus citations

Abstract

The viscoelastic properties of a three-arm and a four-arm star polybutadiene with the same arm molecular weight (M_a) were studied. The zero-shear recoverable compliance (J⁰_e) and plateau modulus (G⁰_N) for these stars are the same. The zero-shear viscosity (η₀) of the three-arm star is 20% lower than that of the four-arm star. Mixtures of the stars had J⁰_e and G⁰_N unchanged. A 50 50 mixture of the three- and four-arm star was diluted with a low molecular weight linear polybutadiene. G⁰_N∝ø²; J⁰_e∝ø^-1 and M_e∝ø^-1, as expected for dilution with a θ-solvent.

Original language	English (US)
Pages (from-to)	1087-1090
Number of pages	4
Journal	Polymer
Volume	26
Issue number	7
DOIs	https://doi.org/10.1016/0032-3861(85)90233-2
State	Published - Jul 1985
Externally published	Yes

Keywords

dilution
polybutadiene
star polymer
viscoelasticity
viscosity
zero-shear compliance

ASJC Scopus subject areas

Materials Chemistry
Polymers and Plastics
Organic Chemistry

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10.1016/0032-3861(85)90233-2

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title = "Linear viscoelastic properties of mixtures of 3- and 4-arm polybutadiene stars",

abstract = "The viscoelastic properties of a three-arm and a four-arm star polybutadiene with the same arm molecular weight (Ma) were studied. The zero-shear recoverable compliance (J0e) and plateau modulus (G0N) for these stars are the same. The zero-shear viscosity (η0) of the three-arm star is 20% lower than that of the four-arm star. Mixtures of the stars had J0e and G0N unchanged. A 50 50 mixture of the three- and four-arm star was diluted with a low molecular weight linear polybutadiene. G0N∝{\o}2; J0e∝{\o}-1 and Me∝{\o}-1, as expected for dilution with a θ-solvent.",

keywords = "dilution, polybutadiene, star polymer, viscoelasticity, viscosity, zero-shear compliance",

author = "N. Hadjichristidis and J. Roovers",

year = "1985",

month = jul,

doi = "10.1016/0032-3861(85)90233-2",

language = "English (US)",

volume = "26",

pages = "1087--1090",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier",

number = "7",

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T1 - Linear viscoelastic properties of mixtures of 3- and 4-arm polybutadiene stars

AU - Hadjichristidis, N.

AU - Roovers, J.

PY - 1985/7

Y1 - 1985/7

N2 - The viscoelastic properties of a three-arm and a four-arm star polybutadiene with the same arm molecular weight (Ma) were studied. The zero-shear recoverable compliance (J0e) and plateau modulus (G0N) for these stars are the same. The zero-shear viscosity (η0) of the three-arm star is 20% lower than that of the four-arm star. Mixtures of the stars had J0e and G0N unchanged. A 50 50 mixture of the three- and four-arm star was diluted with a low molecular weight linear polybutadiene. G0N∝ø2; J0e∝ø-1 and Me∝ø-1, as expected for dilution with a θ-solvent.

AB - The viscoelastic properties of a three-arm and a four-arm star polybutadiene with the same arm molecular weight (Ma) were studied. The zero-shear recoverable compliance (J0e) and plateau modulus (G0N) for these stars are the same. The zero-shear viscosity (η0) of the three-arm star is 20% lower than that of the four-arm star. Mixtures of the stars had J0e and G0N unchanged. A 50 50 mixture of the three- and four-arm star was diluted with a low molecular weight linear polybutadiene. G0N∝ø2; J0e∝ø-1 and Me∝ø-1, as expected for dilution with a θ-solvent.

KW - dilution

KW - polybutadiene

KW - star polymer

KW - viscoelasticity

KW - viscosity

KW - zero-shear compliance

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U2 - 10.1016/0032-3861(85)90233-2

DO - 10.1016/0032-3861(85)90233-2

M3 - Article

AN - SCOPUS:0022093999

SN - 0032-3861

VL - 26

SP - 1087

EP - 1090

JO - Polymer

JF - Polymer

IS - 7

ER -

Linear viscoelastic properties of mixtures of 3- and 4-arm polybutadiene stars

Abstract

Keywords

ASJC Scopus subject areas

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